Drive shaft ?
 

Well I have 40 year old drive shaft makes me wonder ? Heres the question 10 sec. 3700 lbs bbc should I replace? Steel or alum ? If alum will I see decreace in et ? If so how much .04 .06 ? Thats my guess I just don't know. I lost one driveshaft in 1983 and have always used 1350 joints ever since. Thanks in advance for your help, 53 years and no experiance.

Re: Drive shaft ?
 

Call Mark Williams!

Re: Drive shaft ?
 

I lost one in '05 at about 800', came out in 4 pieces, broke the bell housing off a turbo 400, tore up a lot of stuff. Inland Empire said I took it beyond critical mass. Put a 3 1/2" aluminum with 1350 yokes from Inland Empire and a JW Ultrabell in my 4000 lb 10.60 pickup. I don't worry any more.

Re: Drive shaft ?
 

Trying again, have had no luck finding answers bob

Re: Drive shaft ?
 

I believe both posts reply directly to your post. Call Mark Williams would also be my recomendation, they can hook you up with the correct driveshaft for your needs. I've always bought Alum. shafts but that's just my preference, and no the Alum. shaft will not slow you down just the opposite. Joe