I think i have a decently solid setup, just rebuilt my front axle with a few upgrades, welded tubes, bigger u-bolt yoke.

My setup is LS1 Built 60E NP208 case 9.25 axle and dana 44 front. I feel the 60E is built right, NP208 is a low miles case but still chain driven, my chrysler 9.25 axle is big, but no real upgrades other then new bearings, dana 44's are said to be strong, wondering what issues 1/2 tons trucks run into with 400-500 rwhp running 1/4 in 4wd

 

 

Two issues I have thought to be a weak link is the strap style yoke and excessive u-joint angle, I found u-bolt yokes for front and rear and my u-joint angle isn't bad I dont think

 

What size converter are you running, and how much torque are you making at that rpm?

 

Its a Yank SSTB3600 9.5 in converter, I'll have to look at the dyno graph for hp at that rpm but its your typical LS1 with bolt-ons, put down 315 rwhp at 5,500 rpm I THINK and 330 ft.lbs around 4,000 MAYBE

 

I think that being lifted keeping the weight from transferring too much would be a big one. Can you put some sort of limiting strap around the front axle? You will also want to think about traction bars to prevent the leaf springs from wrapping around the axle (not sure that the correct term is) and causing wheel hop. Outside of that I think bring the converter to about 2500 (just a guess as I don't have the same one) and then drop the hammer when you leave the line.

With everything you have going on in that truck I'm surprised you don't have a cam. It would sure love it. I would think something very close to mine would be awesome. give you more top end pull, and more torque where the converter flashes to. In my truck on the stock converter it was worth .5, I think with your converter that difference would only be bigger.

 

Whats the lift on your cam? I was thinking 228R cam would be nice with milling the heads a tad. I have't pulled the trigger on a cam swap yet, I would likle to find an aluminum 6.0 or 6.2, then 228R cam that motor

 

I think it will launch just fine in 4x4. See if you can get somebody to video the launch. Check to see if the front wheels jump side to side, or if it bunny hops. If it does, just address those issues as they reveal themselves.

Let her eat!

 

228 in a lifted 6.0 truck would be sweet. I have a Tr224 in my lifted Silverado and it could use a little more topend power.

 

This.

At least you have a solid front axle. That should eliminate a lot of hopping around on the launch.