ok, I got a 305 right now and its got some pretty decent mods on it, such as headers exhaust gears and it runs good. i plan on dropping in a 350 at some point. maybe even super charging it later.

well my question is.....i know there is a point where you need a heavy duty drive shaft because the aluminum wont cut it. would a 350 tpi with bolt on mods be alright for an aluminum drive shaft or will i need a stronger one? and what about if i added a super charger?

i got the stock drive shaft right now and I want it to go.

thanks

 

I have my stock Al drive shaft behind my 383. All I did was go to solid u joints. I'll let you know if it breaks.

 

ok, but assuming that its strong enough, how much weight am i going to save by going aluminum?

 

I've never compared the weights between the 2. I don't think it's much more then 10#'s.

 

The stock 2.5 steel is 17 pounds and the 1LE 2.75 aluminum is 12 pounds.

 

dosnt seem like much of a gain. any other advantages to aluminum? i hear it dosnt vibrate like the steal one at high speeds.

 

your taking rotational mass off of the drivetrain which is a huge gain overall..

should be go to 400-450 rear wheel area. after that i'd want steel. if you get one for a deal go for it, otherwise there are alot of other things to do with $100.

 

Theres a thread over on the power adder forum that I think may interest you:-

https://www.thirdgen.org/techbb2/sho...hreadid=197986
Any power adder people using an aluminum driveshaft?

 

well im looking to make like 350-400 hp for a daily driven car. so im guessing aluminum is my best bet....unless anybody else wants to suggest otherwise. thanks guys.

 

TPI will protect your drive shaft from ever seeing too much stress, seeing as how that DS works fine in the LS1 cars. I don't think you'll have too much to worry about.