Originally Posted by charliedyal

You can upgrade to a set of 1350's or 1410's, but you'll have to get some custom yokes. Tried to find some on-line real quick, but no luck.Sounds to me like something else is going wrong. Like maybe going air born? LOL. Probably more driver error and other parts failure than the u-joints. Sorry Jackedup.

Originally Posted by Jackedup00

I broke one shaft hill climbing,I lost traction and stomped it and it just rolled down the hill next to me lol

Originally Posted by charliedyal

You need to build a dune buggy brother. Tow it to where you play and raise some cain. LOL Old F150's not built for that.

Originally Posted by jferg92

It was the one I was supposed to get originally

Originally Posted by Z7What

I had had plenty issues with detonation before and I guess now that I think if it tune was prolly the cause. Due to tuner not knowing the huge amount of load the 38"s put in the motor. When taking motor apart heads showed a lot of sign of having detonation for a long time so I guess i just pushed it to hard at the track.

Melded piston!
Attachment 329802 Attachment 329803

Putting new L motor in. Removed old, installed new and was driving down the street in 9hrs goin to parts store twice and eatting one. I did have a lot of the long block stripped down before we started thou.

Attachment 329804

Had to put stock tires on and flatten them in order to get the truck low enough to get the engine over the grill.

Wayne

Originally Posted by MyFX4Project

Any torque converter recommendations for my set up? Just got a new one in with trans rebuild but its got stock stall 1600-1800 I think. Also decided on staying with stock 24lb injectors.

Originally Posted by Jackedup00

For you guys running big tires or high hp trucks,what u joints do you use? I've gone through 3 flange yokes,3 driveshafts and 4 u joints in 15,000 miles. I'm assuming they make something stronger.

Originally Posted by charliedyal

What are you lacking Jferg? Seem to be getting fairly close.

Originally Posted by 4x4dave

Just trying to get a better idea on what i can get away with lol. Do you recall how much rwhp you made? I'm at high altitude with effectively 32.5 tires, so got that in my favor. My tune is spot on but i damn near make a prayer evey time i go WOT.