Better think of front, and rear loops with something that long.

 

He didnt give me a specific rating, he just said he has never had a 5" break and he has customers running 2k plus ft lb diesels doing pulling competions and some high hp setups running them with no issues. He said the 4"is rated at 800 and the 5" is allot stronger.

 

Do you know anything about Big Mo's custom driveshafts? Just wondering since they are local in B'ham.

 

Nope, never heard of them

 

may I ask about prices? I have shopped around for one, and need it to hold 7,000 rpm in 3rd, and PST in Florida said I need a 4" alum to hold the speed. a 5" will hold more, but They want like $650 for a 4",1350's and a rear end yoke. I had talked to DS specialist a while back and wanted to know what yall paid before I called them.

 

I used these guys for my lt1 firebird....

http://www.iedls.com/Driveshafts/Sto...riveshafts.asp

It was rated around 500 or so horse.... They had them in stock from summit and the price was a great deal with yoke and new u-joints.

 

I'm surprised no one has provided an answer on this. Also, what determines when u have an alum. d/shaft on the 99-up trucks. Might as well incl. Avys, Burbs, & Hoes. Which ones get em, which don't?

Does GM say if it's an Ext. Cab, it's getting alum., & on RC, they get steel. Cause my '04 has a rusty steel d/s.

 

Mine is a steel (For my RCSB) that I got from Denny's for $560 with the pinion yoke.

 

That sounds like a good deal...gonna keep that in mind for some day if I end up needing a shaft to do and AWD swap