Maybe this has been discussed, or brought up previously, but if it has I could not locate it.
Several times in my latest trips to the track, while I am heating up the slicks, I will randomly have one of the wheels slow down, and almost stop spinning while the other is smoking away.
My truck is an "01, which of course has 3:73 LS.
There is no other sign of anything being wrong with the rear end,
but I am a little concerned.
Truck has 5500 miles.
Anyone else experienced this?

Marc

 

It shouldn't quit spinning unless something is headed south in your differential...

 

Marc - Last time we were at 42, I noticed that one side (can't remember which) of your truck actually did completely stop spinning. I thought it might have been the fact that the tire wasn't wet enough, and the clutch packs were heating up in the rear end.

 

That would have been the drivers side Phil. That was the first time that it actually happened. Only once this season, but it is
starting to bother me knowing it will probably have to go into the shop and be looked at. It does not do this on the F-1's, just the big Hoosiers.
I was over at 42 Tuesday for T/T, thought maybe you would show up. 1st run went 12.87 @ 106.43. Then a couple of 12.90's.
Then the ricers showed up and I left.

Marc

 

The adhesion of the slicks over powers the "limited slip" capability. Now if youve spun it with one wheel a lot, then the clutch packs in the diff. could be looser than normal now. But you have to remember that "race" cars with big slicks have spools in them due what a burnout can do to a "limited slip". I would just complain about it spinning one tire in the rain and see if you can get diff. clutches put in it under warr. and then be more careful in the future on the slicks. More water on them would help, as would a faster burnout speed (like shifting in 2nd gear before they get real sticky)

 

My 01 does it too. It's done it for several months and I've attributed it to my poor burnout procedure and a slow learning curve It's always the left one too. Sometimes, 'bumping'(?) the brake pedal will cause it to catch and spin.

Dan

 

Are there any spools out there for our trucks yet?

 

Are you sure we only have a limited slip in the rear?

If so, those that want it locked up check with Detroit Locker I'm sure they make somerthing for our trucks, either a full locker or a soft locker that would be nicer on the streets.

Brett

 

Does anyone know if the LS is rebuildable, like the 8.8 rear ends? If so, then it's a pretty easy, low cost job.

 

I would change the rear's fluid and add the friction modifier (sp)
I would imagine that is the problem you probably glazed the clutch packs also go into a large parking lot and do alot of tight circles in both directions right and left that will get the locker to exercise the differential part of it and help the clutches out. I bet this will work and will only cost you a gasket and fluid + modifier

hope this hepls

ps you cant have a spool like a dragster I dont think you would be able to turn on the street kind just for straight lines

Slick

 

Marc - Let me know the next time you plan to head to the track, and I will try and make it there. Last time I was at 42 was pretty decent - no ricers there. I did run slow that night - 13.50's @ 102. I just have to find someting that will pop me into the high 12's.

 

Marc,
I had the same problem with mine about 2 months ago and i put in new rearend clutches in and now both tires spin again and everything is fine.

Matt

 

Actually changing the fluid and not putting the modifier back in would make it more like you guys want it. the modifier is what makes it slip easier, therefore not making noise when u turn.

Yes its as easy to rebuild as a 8.8

 

Mine did it once at WFC. I think I didn't stay in the warter box long enough. It made a funny growling sound. it wasn't done it since. Keeping my fingers crossed.

 

Marc, This is Buddy with the silver 00 from 42. What you need to do is when doing your burnout watch the driverside wheel. If the wheel stops slow down the burnout unill it catches up. Eaton is making a posi unit for our trucks that's supposed to be awsome. I talked to Moser about a spool at PRI and the said if we can have somene make it they can spline it!
Later on!