[irhunter]

I want to change out the LT95 4speed gearbox for a 5/6speed gearbox (auto or manual) but in doing this I lose my 6x6 function
I see a lot of f450 & 550’s, jeeps, dodges chevies using for 9” drive through axles

Wow, nice truck.

Why is changing out the transmission impacting your middle axle?

Got a link for those 9" you know about?

I can't think of a 6x6 in the US other than MD-chassis trucks. Like our 5-ton Military trucks which use Rockwells:

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Roy

 

[irhunter]

Cool. Can you post a pic of the transmission and its two rear outputs?

But, maybe you are using "gear box" differently than we do in the US? Transfer case?

Roy

 

[irhunter]

Wow. That is cool. Thanks for the pic.

Sort of like a 3-out FWD transaxle mounted front-back.

And, you plan a more-normal transmission and transfer case with a drive through middle axle? And, that will be always-on-aft-2-axles plus a selectable front?

"I see a lot of f450 & 550’s, jeeps, dodges chevies using for 9” drive through axles"

You are saying, those trucks have three axles? I agree with Char, that axles under a F550 would be plenty for your application. I guess it is possible to over-weight axles...but, generally, the risk is over-torque. What motor you got? What is the torque output?

Roy