Vid from today

https://s246.photobucket.com/user/schmitty1970/media/P1010062_zpseed35fa6.mp4.html
Had another bad luck day today. I got the transfer case swapped out Thursday, and went to try my luck today at a timed race. Got up to the line, and let it rip, somewhere between the 1st and 2nd shift it broke the U-joint on the front output of the T/C. Got a little wild on the top end, and my day was over. At least it stayed on all four wheels. It was sliding sideways for a fair bit more after the vid quit. Time to get a full 1350 joint on there, instead of a hybrid 1350/1330 joint.

damn that c headed deal sounds good ...... but I think you need to add some nitrous  

It's not legal in the class that I built the truck for.

hoooollddd on there old farmer Rob   

Shiny side up Big Daddy !

Nice that you didn't tear up more stuff.   I broke a joint at launch and tore up everything from the ring & pinion to the planetaries.  I guess you just live right. 

Nice job gathering it up.

Glad to see she's still running good and braking parts..lol jk.. u got lots of front wheel hop how close are your ratios?

schmitty wrote:https://s246.photobucket.com/user/schmitty1970/media/P1010062_zpseed35fa6.mp4.html
Had another bad luck day today.  I got the transfer case swapped out Thursday, and went to try my luck today at a timed race.  Got up to the line, and let it rip, somewhere between the 1st and 2nd shift it broke the U-joint on the front output of the T/C.  Got a little wild on the top end, and my day was over.  At least it stayed on all four wheels.  It was sliding sideways for a fair bit more after the vid quit.  Time to get a full 1350 joint on there, instead of a hybrid 1350/1330 joint.

Sounds and looks real good ! rpm cam up quick:bounce: !

fatal addiction wrote:Glad to see she's still running good and braking parts..lol jk.. u got lots of front wheel hop how close are your ratios?

Wheel hop was when the U joint came unglued. 3.08 front, and 3.90 rear, it comes up to about 7% overdrive to the front by the rollout measurements.

Looks like the wheel hop caused the u joint to come unglued to me??

3.90 rear must run low range?

Whoa, a bit squirrely, good recover. Sounds mean.

Schmitty , you should sell tickets to let everybody ride with you.! wow! 

schmitty wrote:Wheel hop was when the U joint came unglued.  

Right there is the problem! I thought everyone knew that duct tape was better than glue.....

I have some new parts on the way, a 1350 yoke for the T/C, and a new set of springs for the front end. I hope that this will go away now, and it will be smooth sailing for a while again. Thanks for all of the help guys. 

Just my opinion ...
 From the looks of it all, the front wheels are planted to hard compared to the rears at the start for the 7% overdrive.
Less overdrive in the front would seem to be better in a situation such as that.

I agree 100% with that I like to run mine as close as possible no more than a couple %.