gear rato
Super Moderator
Joined: Apr 2004
Posts: 34,481
Likes: 2,801
Ratio tag on one of the bolts on the rear cover?
VIN or codes on the VIN plate or spec plate inside a door sill?
Owner's manual to decode the plate?
Look for axle codes and post here, someone will know, and your post will probably be moved to the axle trans etc area.
VIN or codes on the VIN plate or spec plate inside a door sill?
Owner's manual to decode the plate?
Look for axle codes and post here, someone will know, and your post will probably be moved to the axle trans etc area.
Still kicking!!
Joined: May 2003
Posts: 6,061
Likes: 6
From: Kalispell, Mt.
Not scientific, but used to work in my younger years.
1. Safely, raise the rear end up so the wheels turn freely. (Tranny in neutral)
2. Mark a spot on one tire and match it to the wheel well.
3. Mark a spot on the rear end of the drive shaft and match it with the closest part of the differential housing.
4. Spin rear wheel one full turn. Meanwhile, have someone count the number of exact times the driveshaft turns.
For example : driveshaft turns 3.5 times for one revolution of tire. Differential gearing is 3:50. You can usually guestimate pretty close if you know the gear ratios available.
Finding a tag is much easier and more accurate, though.
1. Safely, raise the rear end up so the wheels turn freely. (Tranny in neutral)
2. Mark a spot on one tire and match it to the wheel well.
3. Mark a spot on the rear end of the drive shaft and match it with the closest part of the differential housing.
4. Spin rear wheel one full turn. Meanwhile, have someone count the number of exact times the driveshaft turns.
For example : driveshaft turns 3.5 times for one revolution of tire. Differential gearing is 3:50. You can usually guestimate pretty close if you know the gear ratios available.
Finding a tag is much easier and more accurate, though.
