[firetoy]

i have a crazy ? i have a 92 cummins with the 727 auto in it. i would like to have a manual. one of the vans a bought i think has a sm465 in it. would this bolt behind my 6bt? are the bolt patterns the same from the 4bts to the 6bts?
if it did bolt up. would it hold up?

 

[Cory Smith]

You would need the matching flywheel housing from the 4bt, but it would bolt up to your 6bt just fine.

 

[firetoy]

interesting. how would that tranny hold up?

 

[Cory Smith]

They handle big blocks just fine.

 

[BobS]

The weakest point is the input shaft and clutch disk when used behind a diesel. The SM-465 was a common transmission in GMC trucks that had a GVW of 21,000 pounds.

 

[firetoy]

would my 205 bolt behind?

 

[DarylB]

Yeah, but you'd have to change the outputshaft in the transmission or run a divorced t-case. The 2wd and 4wd versions are different. I've got a 4wd SM465 collecting dust.

 

[BobS]

The SM-465 2WD & 4WD have different output shafts. From memory I recall that the 4WD had a few different adapters that connected it to the NP205 depending on the year in which it was used.

 

[DarylB]

BobS is correct. They had a 10 spline coarse outputshaft up until sometime in the 80's then they went to a 32 spline fine, then a 32 spline fine long shaft in the late 80's. The adapters changed as well, from the racetrack 8 bolt pattern to the more common 6 bolt round pattern.

 

[J10Diesel]

Transfer Case Adapter for the SM-465

I installed a transfer case adapter in my SM-465. There are several sources for adapters. I used an adapter from Novak. The adapter that I used required replacing the trans mainshaft. So, I installed a rebuild kit while I was at it.

 

[xyz12383318]

Was it a 4x4 to start

and what did the adaptor cost?

 

[J10Diesel]

SM-465 xfr case adapter

and what did the adaptor cost?

Here is the website address at Novak for the SM-465.

http://www.novak-adapt.com/knowledge/sm465.htm

Lewis

81 J10
SM-465
NP 208

 

[Paul(in NY)]

Take a look at the 'General Classifieds'. I just put a SM-465 to NP-205 adapter up for Sale / Trade.

Paul