Join Date: May 2005
Thanked 60 Times in 44 Posts
I've not heard of any GM IFS failures, whether it be pulling or racing. Now, that being said, the real weak link is the tie rods. Best thing to do if you want to keep the stockers is to install a set of Super Diesel Tie Rod Sleeves.
For aftermarket FabTech has beefy tie rods available.
Most people lower their T-bars when racing and pulling too. Has something to do with the tires wanting to toe-in. Thats why the tie rods bend...too much force on them.
Also, I moved this to the General GM Perf forum...