Eaton Fuller Road Ranger 9 speed..... 1947
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Thread: Eaton Fuller Road Ranger 9 speed..... 1947

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    Default Eaton Fuller Road Ranger 9 speed..... 1947

    Got a hit on a local Eaton Fuller Road Ranger 9 speed air shift with bellhousing for cheap..... under 200,000 miles, and has the shift tower on it with the lever just cut off a few inches up.......

    Maybe Grigg or Crewcab or anyone for that matter can chime in....

    Can I simply put an SAE #2 adapter and SAE #2 flywheel behind a 3.9 or 5.9 and have it work or are the flywheels and adapters transmission specific.. (I dont know how 'standard' the SAE spec is)

    ~M


    EDIT: I know they don't make a 9 speed with overdrive.... but I can change my 4.10 gears in my 14 bolt to 3.73 to get 68 mph top speed at 2500 rpm... which is just fine (if not I can go even lower on the rear end gears)

    Thoughts? Right now it looks liked I'd have $900 total with an SAE #2 flywheel, flywheel housing(adapter) and transmission...... thoughts?
    1966 Chevy C-10 Shortbed Fleetside
    5.3L LM7/4L60e LSx swap
    Project 1966 C10 LSx Build Thread - 67-72 truck forum

    **OLD**1947 Ford 1.5 Ton DRW
    Cummins 6BT P7100 - HE341 Turbo
    Eaton Fuller RT-6610 10 speed - 4 Link Rear / IFS/4whl Disc/all on air

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    They indeed do make a 9 speed w/ overdrive..... I'll have to check to see what model # it is....
    1966 Chevy C-10 Shortbed Fleetside
    5.3L LM7/4L60e LSx swap
    Project 1966 C10 LSx Build Thread - 67-72 truck forum

    **OLD**1947 Ford 1.5 Ton DRW
    Cummins 6BT P7100 - HE341 Turbo
    Eaton Fuller RT-6610 10 speed - 4 Link Rear / IFS/4whl Disc/all on air

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    Any 9 speed Roadranger with overdrive is in the 600-900 lb range. (as in big and heavy, not torque capacity)
    They do make a small RT-6609A in the 400 lb range, same size and many of the same parts as my 10 speed.
    They do not make an RTO (overdrive) version of the small 9 speed.

    You'd need an SAE #2 flywheel housing, and any SAE #2 flywheel for an automotive application that takes a normal 14" clutch.
    SAE Housing and flywheel are unrelated to transmission, other than you need an automotive flywheel as mentioned.

    Grigg
    1948 Chevrolet 6400 (2 ton) updated with a Detroit Diesel Silver 4-53T and Roadranger RTO-6610 --click for all my pictures--
    "First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-

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    Quote Originally Posted by Grigg View Post
    Any 9 speed Roadranger with overdrive is in the 600-900 lb range. (as in big and heavy, not torque capacity)
    They do make a small RT-6609A in the 400 lb range, same size and many of the same parts as my 10 speed.
    They do not make an RTO (overdrive) version of the small 9 speed.

    You'd need an SAE #2 flywheel housing, and any SAE #2 flywheel for an automotive application that takes a normal 14" clutch.
    SAE Housing and flywheel are unrelated to transmission, other than you need an automotive flywheel as mentioned.

    Grigg
    If its an RT 6609A for $250 would you jump on it? (It would currently give me a 60 mph top speed at max RPM with a 4.10 rear end..... i could then go down to a 3.43 to get 75 mph out my top end direct. You know what the torque input rating is on these?

    As always Grigg, I think you know the most of the roadrangers........
    1966 Chevy C-10 Shortbed Fleetside
    5.3L LM7/4L60e LSx swap
    Project 1966 C10 LSx Build Thread - 67-72 truck forum

    **OLD**1947 Ford 1.5 Ton DRW
    Cummins 6BT P7100 - HE341 Turbo
    Eaton Fuller RT-6610 10 speed - 4 Link Rear / IFS/4whl Disc/all on air

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    Also, how hard are these things to actually shift.... (I know how to drive synchro boxes and I know of double clutching and matching gears (from motorcycle racing etc....)
    1966 Chevy C-10 Shortbed Fleetside
    5.3L LM7/4L60e LSx swap
    Project 1966 C10 LSx Build Thread - 67-72 truck forum

    **OLD**1947 Ford 1.5 Ton DRW
    Cummins 6BT P7100 - HE341 Turbo
    Eaton Fuller RT-6610 10 speed - 4 Link Rear / IFS/4whl Disc/all on air

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    I heard back from the owner.....

    its an RTF11609A which I think is too big....

    it was in a 1990 GMC White (350 Cummins)

    the suck.... right?
    1966 Chevy C-10 Shortbed Fleetside
    5.3L LM7/4L60e LSx swap
    Project 1966 C10 LSx Build Thread - 67-72 truck forum

    **OLD**1947 Ford 1.5 Ton DRW
    Cummins 6BT P7100 - HE341 Turbo
    Eaton Fuller RT-6610 10 speed - 4 Link Rear / IFS/4whl Disc/all on air

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    Nothing worthwhile for your truck there..

    But when you do run across a decent 6609 for $250 please let me know if you pass on it.
    If it's worn out or broken it's not a good deal, but if it's usable it's a fair deal, possibly a great deal depending on condition.
    The non overdrive's don't sell for all that much, it's the little OD ones (10 and 13 speeds) that can be expensive and difficult to find at realistic prices.

    As far as shifting a Roadranger, if you understand how to shift, match speeds, double clutch whatever you want to call it, then you can figure out a Roadranger in a week or two. If you have very little idea how to shift (a normal synchronized transmission) and just stab it in gear no matter the speed/rpm and pray the synchronizers do the job then a Roadranger will be a challenge.

    Grigg
    1948 Chevrolet 6400 (2 ton) updated with a Detroit Diesel Silver 4-53T and Roadranger RTO-6610 --click for all my pictures--
    "First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-

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    Having a hard time Grigg finding an RTO6610, RT6610 or even an RT6609A for any affordable price...... (truck salvage yards..... any thing I'm missing Grigg?) (Under $1500 -1000 is just not doable)

    ~M
    1966 Chevy C-10 Shortbed Fleetside
    5.3L LM7/4L60e LSx swap
    Project 1966 C10 LSx Build Thread - 67-72 truck forum

    **OLD**1947 Ford 1.5 Ton DRW
    Cummins 6BT P7100 - HE341 Turbo
    Eaton Fuller RT-6610 10 speed - 4 Link Rear / IFS/4whl Disc/all on air

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    Guess I'm going to whatever presents itself sooner... the 9 or 10 speed RT 6609A or RT6610
    1966 Chevy C-10 Shortbed Fleetside
    5.3L LM7/4L60e LSx swap
    Project 1966 C10 LSx Build Thread - 67-72 truck forum

    **OLD**1947 Ford 1.5 Ton DRW
    Cummins 6BT P7100 - HE341 Turbo
    Eaton Fuller RT-6610 10 speed - 4 Link Rear / IFS/4whl Disc/all on air

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    You will probably be better off with an RTO-610 or RTO-6610.
    Are you limited by small tires and 3.something axle gears?
    Won't the 0.80 OD be needed?
    1948 Chevrolet 6400 (2 ton) updated with a Detroit Diesel Silver 4-53T and Roadranger RTO-6610 --click for all my pictures--
    "First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-

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    Quote Originally Posted by Grigg View Post
    You will probably be better off with an RTO-610 or RTO-6610.
    Are you limited by small tires and 3.something axle gears?
    Won't the 0.80 OD be needed?
    32.4" diameter tires...
    an RTO610 or 6610 overdrive of .80
    4.10 rear end..... say 2000 RPM cruising engine speed (my cummins reds at 2500)
    CALC: 59 MPH

    32.4" diameter tires...
    an RT610 or 6610 direct drive of 1.00
    4.10 rear end..... say 2000 RPM cruising engine speed (my cummins reds at 2500)
    47MPH



    IDEAL:
    32.4" diameter tires...
    an RTO610 or 6610 overdrive of .80
    3.73 rear end..... say 2000 RPM cruising engine speed (my cummins reds at 2500)
    65 MPH


    Substitite:
    32.4" diameter tires...
    an RT610 or 6610 direct drive of 1.00
    3.43 rear end..... say 2000 RPM cruising engine speed (my cummins reds at 2500)
    56MPH
    1966 Chevy C-10 Shortbed Fleetside
    5.3L LM7/4L60e LSx swap
    Project 1966 C10 LSx Build Thread - 67-72 truck forum

    **OLD**1947 Ford 1.5 Ton DRW
    Cummins 6BT P7100 - HE341 Turbo
    Eaton Fuller RT-6610 10 speed - 4 Link Rear / IFS/4whl Disc/all on air

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    Quote Originally Posted by Grigg View Post
    Nothing worthwhile for your truck there..

    But when you do run across a decent 6609 for $250 please let me know if you pass on it.
    If it's worn out or broken it's not a good deal, but if it's usable it's a fair deal, possibly a great deal depending on condition.
    The non overdrive's don't sell for all that much, it's the little OD ones (10 and 13 speeds) that can be expensive and difficult to find at realistic prices.

    As far as shifting a Roadranger, if you understand how to shift, match speeds, double clutch whatever you want to call it, then you can figure out a Roadranger in a week or two. If you have very little idea how to shift (a normal synchronized transmission) and just stab it in gear no matter the speed/rpm and pray the synchronizers do the job then a Roadranger will be a challenge.

    Grigg
    How about a tutorial on that old friend?
    True self-esteem comes only from what your dog thinks of you.

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    Quote Originally Posted by DieselSchlepper View Post
    How about a tutorial on that old friend?
    First review this thread on Roadrangers (the small ones)
    http://www.4btswaps.com/forum/showth...ger-ten-speeds

    One method of shifting is explained here, not the recommended way but is the most often used.
    http://www.4btswaps.com/forum/showth...0795#post50795

    The proper way is explained Here in the 6610 manual pages 5 and 6.

    Grigg
    1948 Chevrolet 6400 (2 ton) updated with a Detroit Diesel Silver 4-53T and Roadranger RTO-6610 --click for all my pictures--
    "First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-

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    Quote Originally Posted by 47Ford - 1.5Ton View Post
    IDEAL:
    32.4" diameter tires...
    an RTO610 or 6610 overdrive of .80
    3.73 rear end..... say 2000 RPM cruising engine speed (my cummins reds at 2500)
    65 MPH


    Substitute:
    32.4" diameter tires...
    an RT610 or 6610 direct drive of 1.00
    3.43 rear end..... say 2000 RPM cruising engine speed (my cummins reds at 2500)
    56MPH
    Is 2,000 rpm your ideal cruising RPM? I was thinking closer to 1,800 was better, but I'm not sure.
    What RPM is good in a full size Dodge truck, as I expect your truck will be a similar weight and size?

    If a lower RPM is better then consider this situation
    32.4" diameter tires...
    an RTO610 or 6610 overdrive of .80
    3.43 rear end..... say 1,800 RPM cruising engine speed
    63.25 MPH

    Were it my truck your "substitute" combination would not be an option. I've driven cross country in diesel re-powered trucks geared like that and it is not so much fun, or cheap.

    I suppose this all depends on how you will use the truck, please fill us in.

    If around town at low speeds or always with a load some lower gears will get you by, might even be ideal.
    But if you intend to drive on the highway and run empty a good portion of the time you'll want it geared to travel at a comfortable speed with traffic and get the best possible economy while doing so.

    Grigg
    1948 Chevrolet 6400 (2 ton) updated with a Detroit Diesel Silver 4-53T and Roadranger RTO-6610 --click for all my pictures--
    "First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-

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    FINE: Looks like I'm looking for an RT6610 or a RT610 Grigg....besides teh 600 ft lbs vs. the 660 ft lbs torque rating.... is there any other 'difference' mechanically between the 2 besides the finer gear cut? Does this cut make one easier to work with then the other.

    90% of my driving will be Daily Driver intown/highway....... (lots of 2 shifting, preselect, 3 shifting I would assume)

    10% Loaded


    edit: Anyone wanna give me a ballpark of what my 4BT and ZF 5 speed with all the accessories, bells, and whistles should list for? ($3500?) I don't even know?
    Last edited by 47Ford - 1.5Ton; 11-03-2010 at 02:28 PM.
    1966 Chevy C-10 Shortbed Fleetside
    5.3L LM7/4L60e LSx swap
    Project 1966 C10 LSx Build Thread - 67-72 truck forum

    **OLD**1947 Ford 1.5 Ton DRW
    Cummins 6BT P7100 - HE341 Turbo
    Eaton Fuller RT-6610 10 speed - 4 Link Rear / IFS/4whl Disc/all on air

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    I'm not following your logic on picking the non overdrive version?

    Also don't understand the comment?
    "lots of 2 shifting, preselect, 3 shifting I would assume"
    When driving/shifting a Roadranger 10 speed you only shift the range selector once when changing up from 5th gear up to 6th and then range shift again from 6th back down to 5th gear. The range shift is not a splitter, it is not used between every gear.

    10% loaded would point me to gearing it to cruise comfortably on the highway empty.
    With 10 speeds even if geared on the higher side you have plenty of gears to choose from and it will haul stuff quite well. In fact if you choose an OD transmission and gear for it, then if you haul stuff in direct drive (9th) it only increases the RPM ~20%, or about 500 rpm, which is great to bump the power and comfortably move a load at about the same speed you were doing in OD. It's better not to tow/haul stuff in OD any how.

    You'll find 0.80 OD is more pleasant than a ~0.73 (like in an NV4500); with the closer OD ratio you can slip in and out of high gear at the same road speed without out over reving the engine.

    After the finer pitched gears there is no other significant differences between the 600 and 660 series Roadrangers.
    The gears are constantly in mesh, and the small sliding clutches are the same pitch so there is no difference in driving. Noise is the main thing, and even then it's nothing big. The slightly increased torque capacity probably won't amount to anything for our use in small trucks.

    The main advantage to the 6610 is parts will be available for longer than the 610, and they are slightly cheaper. Note that the 510, the predecessor to the 610, is all but extinct as far as replacement parts go.

    Grigg
    1948 Chevrolet 6400 (2 ton) updated with a Detroit Diesel Silver 4-53T and Roadranger RTO-6610 --click for all my pictures--
    "First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-

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    Grigg,

    I used to do bluegrass combining at my roomates farm (when I was in college) and I drove big grain tandem axle haulers 13 speed... (don't know if there the same but eventually I got use to it.

    When empty I would run this pattern

    R 1 3 5
    L 2 4 6 (Two shifts in low range.... I would start in 1, shift to 4...hit the pre-select knob to high range

    then run gear 7, 9, 10 (never got to 11 or 12.....)
    ....7 9 11
    .. 8 10 12

    This is my 200 miles of driving a 'big truck' transmission... no idea what it was.... but it was an old international I think...

    2 shifts, preselect into high range, 3 shifts...

    Sorry for using my 'special lingo'

    edit:
    Last edited by 47Ford - 1.5Ton; 11-03-2010 at 03:06 PM.
    1966 Chevy C-10 Shortbed Fleetside
    5.3L LM7/4L60e LSx swap
    Project 1966 C10 LSx Build Thread - 67-72 truck forum

    **OLD**1947 Ford 1.5 Ton DRW
    Cummins 6BT P7100 - HE341 Turbo
    Eaton Fuller RT-6610 10 speed - 4 Link Rear / IFS/4whl Disc/all on air

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    The tires on your truck are only 32.4 inches high? They look taller than that. In my Dodge I cruise 74 mph a little under 2000 rpm and that is just about right, I used to have 4.10's and it was 21-2200 rpm and that was really singing. Mine is a 24 valve and goes a little further for RPM's but I would think you'd want around 1800 at 65 mph with that 12 valve.

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    Quote Originally Posted by 47Ford - 1.5Ton View Post
    Grigg,

    I used to do bluegrass combining at my roomates farm (when I was in college) and I drove big grain tandem axle haulers 13 speed... (don't know if there the same but eventually I got use to it.

    When empty I would run this pattern

    R 1 3 5
    L 2 4 6 (Two shifts in low range.... I would start in 1, shift to 4...hit the pre-select knob to high range

    then run gear 7, 9, 10 (never got to 11 or 12.....)
    ....7 9 11
    .. 8 10 12

    This is my 200 miles of driving a 'big truck' transmission... no idea what it was.... but it was an old international I think...

    2 shifts, preselect into high range, 3 shifts...

    Sorry for using my 'special lingo'

    edit:
    The 13sp is different from the 9 & 10 spds. You split gears with the 13 and like Grigg said the 9 & 10 you go through the low side then switch to the high side. As for shifting with no syncros, no big deal, once you get the hang of it it is easyer to shift without a clutch and NOT grind than to double clutch. The main thing is not to force, if you get it wrong just be paitent and play with the throttle.

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    Quote Originally Posted by fte View Post
    The 13sp is different from the 9 & 10 spds. You split gears with the 13 and like Grigg said the 9 & 10 you go through the low side then switch to the high side....
    True for the big 13 speeds, the one exception that I know of is the 613 and 6613, they are essentially 10 speeds with 3 lower gears, not like the other 13 speeds out there.

    Grigg
    1948 Chevrolet 6400 (2 ton) updated with a Detroit Diesel Silver 4-53T and Roadranger RTO-6610 --click for all my pictures--
    "First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-

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    Quote Originally Posted by 47Ford - 1.5Ton View Post
    If its an RT 6609A for $250 would you jump on it? (It would currently give me a 60 mph top speed at max RPM with a 4.10 rear end..... i could then go down to a 3.43 to get 75 mph out my top end direct. You know what the torque input rating is on these?
    If you have a 10.5" 14bolt rear, 3.21 gears are also available, thats what I put in my 93 chevy. I sent you a PM over at jalopyjournal.

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    Quote Originally Posted by midniteplowboyy View Post
    If you have a 10.5" 14bolt rear, 3.21 gears are also available, thats what I put in my 93 chevy. I sent you a PM over at jalopyjournal.
    message sent on jalopy journal...
    1966 Chevy C-10 Shortbed Fleetside
    5.3L LM7/4L60e LSx swap
    Project 1966 C10 LSx Build Thread - 67-72 truck forum

    **OLD**1947 Ford 1.5 Ton DRW
    Cummins 6BT P7100 - HE341 Turbo
    Eaton Fuller RT-6610 10 speed - 4 Link Rear / IFS/4whl Disc/all on air

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