Long story short, I hurt 5th gear towing, so short on time, I can get a 6 speed with 100k, for a reasonable price. If I put my 5speed wiring and valve body in, will it work? If it will work, anything I should do while I am swapping it? TIA.
Thanks.Make sure it has the input speed sensor on the bell housing. LMM 6 spd doesn't have one there, it's on the engine.(Could still swap it over too if needed) You'll need to swap the NSBU switch over also
shift kits are usually better lol. But it depends on how abuse that current 6 speed is. you can throw a transgo jr in there but if clutches are hurt or the converter is hurt, it wont hold much power for long. ideally, you will have it out so youd be better off just building it now.Thanks so much.
Should I put a shit kit in the valve body?
They came out of wrecked vehicles, 100,000 km's, fluid cherry red. Pans were dropped, no metal etc in the pan.shift kits are usually better lol. But it depends on how abuse that current 6 speed is. you can throw a transgo jr in there but if clutches are hurt or the converter is hurt, it wont hold much power for long. ideally, you will have it out so youd be better off just building it now.
it wont hurt to put a transgo jr in then. also, make sure that converter is flushed/cleaned real well before you go putting it back in. same with the heat exchanger in the rad. would really suck to send old trash back through the new/used trans and then potentially kill it.They came out of wrecked vehicles, 100,000 km's, fluid cherry red. Pans were dropped, no metal etc in the pan.
Will be using my aftermarket converter.
Selling them for $550 complete. Has 2 left, blowing out stock.
My original went 450K, so this should get me a few years, and time to get the 5 speed gone thru and repaired/fixed up.
Agreed. Thanks again.it wont hurt to put a transgo jr in then. also, make sure that converter is flushed/cleaned real well before you go putting it back in. same with the heat exchanger in the rad. would really suck to send old trash back through the new/used trans and then potentially kill it.
Thanks, forgot about that.Pay attention to the shifter shaft. Most of the 6 speeds have a shorter shaft then the earlier external NSBU transmissions. Easy to swap shaft when VB is out
You need a transgo JR. Nobody should ever use the full transgo kit on a 5spd regardless.Thanks, forgot about that.
Gotta call Transgo and see which kit they recommend as I was reading their notes on what kit does what.
You need a transgo JR. Nobody should ever use the full transgo kit on a 5spd regardless.
May I ask why? They only show one kit for the 5 speed and one for the 6 speed. It says you can use the 6 speed JR in the 5 speed but it won't get the benefits of higher clutch holding power.This kit can be installed in 2001 to 2005 vehicles with the Allison five-speed transmission, however, using this kit with these first design earlier five-speeds will not provide the 111% increase in torque capacity needed for 4th and 5th gear. Repeated failure of the C2 on these five-speed units is a common complaint, therefore we highly recommend installing part # ALLISON SK instead of this Allison-Jr for these early five speed units.
The issue is TransGo thought the issue was the C3 was overpowering the C2 and causing the issue when in fact it was the other way around. The 5spd kit causes harsh shifts as it removes the cushioning effect of the C2 piston.May I ask why? They only show one kit for the 5 speed and one for the 6 speed. It says you can use the 6 speed JR in the 5 speed but it won't get the benefits of higher clutch holding power.
Always open to learning. Thanks again.
Awesome. Yeah, the stocker went a long time.If the new trans is a 6spd core and you're just swapping valve bodies, can't use the early "Full Transgo 5spd" kit anyway. Being that you're running an aftermarket converter, I'd pull the bell housing off so you can run a new regulator spring and mod the converter valve. If your 5spd has 400k miles on it now, I doubt you'll ever need to truly build the trans unless you plan on cranking the power up.
Not to hijack, but what is recommended for use in a 5 speed? I've seen conflicting info related to a benefit of the JR kit. Or is that TG kit paired withthe Mike L trim springs the ticket? Will the addition of the shift valves and ratiotek PR spring be beneficial in a regular use type truck? ThanksYou need a transgo JR. Nobody should ever use the full transgo kit on a 5spd regardless.