i have a 91 z l98. i used to be able to bust donuts like nothing back not that long ago....then i bought some new tires and i i havent done any, so i wont waste my 245s(expensive tire)... it still burns tires like crazy just by taking off. i tried to do a donut yesterday and it feels like one tire locks.... and does not want to do them.........what could be the problem... i did the gear oil change... but did not add posi additive.... could this be the problem?? some liquid??? or my rear end is just old and abused????

 

Do a burnout in a straight line and see if you leave 2 black stripes. If you dont your posi is done.

 

it is posi... burns both of the tires like nothing... once i turn to bust a donut. feels like one tire locks

 

Donuts = child's play. Why put your car through this abuse? Only serves to lessen the life of the tranny, rear gears, posi unit, etc. Do you not like the car?

 

Man lighten up. If you can't play with your car when you feel like it what's the point of the car? Or life. We all play (I hope) in different ways. It's America after all. Excuse me while I get off your lawn.

 

I myself am a fan of doughnuts, burnouts and general silly-ness with a car. Its y i built mine!.. good times.. its also good stress relief!

All done in place for it of course

 

yes i love my car. i just want to know why all of a sudden it wont do it. im not going to go bust donuts , i just wana know that if it comes down to it , my car will be ready to do them.

 

Have you checked your rear diff fluid?

Anyways doughnuts are for bay area sideshows, do you drive a bucket that you don't give a f*88 about?

 

well like i said i had barely changed it...... but did not add any posi additive... and yes i have a gas saver.... that i do care about too...

 

does anyone have an idea????

 

9 bolt or 10 bolt?

 

So why did you need new tires?

 

10 bolt...3:23 gears

 

i have some cheaters on and they were kinda expensive , dont want to waste them on a donut... so i bought just some street tires.....

 

You should also do some killer "neutral drops" too for added fun before doing donuts ! Tach your motor up to 4000 rpms or so then slam it into drive !
Your friends will be so impressed.................

Think of all that impressive tire smoke !

 

hay my 91z28 has same problem. if people dont like busting donuts doesent mean you got to reply with bs comments 2 all you people
and no its not a gayarea thing

 

 

negative...thats asking to destroy my trans and engine....

 

do u know whats ur problem whit your z???

 

You're overlooking sonjaab's sarcasism. "spinning donuts" and brake stands take a toll on your trans. and diff. just like a neutral drop.

 

Still don't know why you needed new tires.

 

I just had to get new tires too. Can someone figure out why this happens?

 

The spring in the dif has become weak. Either your clutches/cones spring are worn and need replaced or shimmed to increase the torque capacity of the diff. I over shim mine a tad. You dont want to go to crazy with your shimming because it'll wear your clutches/cones waaay to fast.
A GM service manual will answer these questions and many more you will have.

 

thats just like what drag racers do but with a manual trans.. and slicks! guys/gals used to do this back in the day b4 high stall converters.. yup its all hard on stuff ! I do crazy stuff to my car all the time.. I giggle like a little school girl when I break somthing.. Its fun for me to drive break and fix it because I can!

 

na im still tryn to findout

 

Donuts and burnouts are fun, ***** the haters who have a stick up their ****