Engine/Transmission (1998.5 - 2002) transmission and axle strength

[IngrahamS]

I am planing on increasing my trucks power to around 500 RWHP, now I know my stock transmission wouldn't be putting that much power to the ground for long. I will be getting a full DTT transmission. My questions are...



Is a billet input shaft enough to handle this or do i need to go with the intermediate and output shafts too?



Is the stock Dana 70 strong enough to handle the power as well or do i need to get some stronger shafts, U joints, etc.



My truck will be a daily driver with the occasional trip to the track, Because it is a daily driver it will not be pulling any sleds.

 

[csutton7]

loaded questions---but knowing what I do--I'd go full billet---why make one part billet if the rest isn't--the output shaft it suspect also--at the very least I'd do both, but at this point it doesn't make sense to not go full billet---



the dana 70 may or may not hold up--I'd think it would be ok--but axles and u-joints are always suspect depending on launch style, hops, etc... ---adding some sort of ladder bar system would be intelligent also--may keep the u-joints intact--so your call on all of this--problem is for all the guys who's stock stuff has held all it takes is once and you'll be ticked off--if you can afford it then upgrade as your HP will most likely go up also---chris

 

[IngrahamS]

rear axle

Who makes stronger u joints and axles for the dana 70? Would upgrading to a dana 80 make more sense? if so will it bolt right in or are there modifications that need to be done? Thanks for the quick reply.

-Stew

 

[SnoKing]

Who makes stronger u joints and axles for the dana 70? Would upgrading to a dana 80 make more sense? if so will it bolt right in or are there modifications that need to be done? Thanks for the quick reply.

-Stew

You have to shorten the rear drive shaft. SNOKING