What gears do I have?
Thread Starter
Teching In
Joined: Aug 2007
Posts: 4
Likes: 0
From: Jacksonville, North Carolina
What gears do I have? I have a 2002 z28 35th anniversary, A4. Slp 350 performance pack, high flow cats, rebuilt trans w/ B&M shift kit. I had a ten bolt with 2.73's stock.
Had a pinion seal put in and the dealership that did it did not get the nut on the pinion tight enough. It eventually wore the gears down enough, backlash was too high, and the rear started grinding. Dealership wouldn't fix it. I was too far outside of their warranty period.
Couldn't afford new rearend so replaced it with a used ten bolt for now. My speedometer is now off 15mph at 70, it says 85mph, at 60 mph it says 72mph. and my rpms are considerably higher. Used to be at 2000rpm I was at 81 mph, now at 2000 rpm I am at about 72 mph. Give or take one or two mph.
I jacked the rearend up w/ the car in nuetral and spun the tire. for every one turn of the tire, the drive shaft turned one and a half.
Anybody know about what gears I have now?
Had a pinion seal put in and the dealership that did it did not get the nut on the pinion tight enough. It eventually wore the gears down enough, backlash was too high, and the rear started grinding. Dealership wouldn't fix it. I was too far outside of their warranty period.
Couldn't afford new rearend so replaced it with a used ten bolt for now. My speedometer is now off 15mph at 70, it says 85mph, at 60 mph it says 72mph. and my rpms are considerably higher. Used to be at 2000rpm I was at 81 mph, now at 2000 rpm I am at about 72 mph. Give or take one or two mph.
I jacked the rearend up w/ the car in nuetral and spun the tire. for every one turn of the tire, the drive shaft turned one and a half.
Anybody know about what gears I have now?
Teching In
Joined: Oct 2005
Posts: 48
Likes: 0
From: Eastern MA
do you know what vehicle the used 10 bolt came out of?? you could always take off the rear end cover, count the teeth on the ring gear, and pinion gear divide the two and that is your geat ratio... any more questions send a pm...
