Gear Ratios
Team Owner
Joined: Jul 1999
Posts: 65,492
Likes: 230
From: Orange Park Florida
Since on any of performance cars this age group, you need forget numbers entirely....jack up the rear, support with tires off the ground and suspension LEVEL....and NOT by the struts....under the knuckles or on the T arms....
tranny in neutral....grab a majic marker, strike a spot on a tire, strike a spot on the driveshaft.....spin the drive shaft being real careful to count the amount of revs untill the tire spins ONE revolution...
now you WILL have to calculate visually the percentage of one incomplete revolution of the driveshaft.....
so say you have 3 and 1/3 rev.....that means you have a 336 rear....
you have 3 1/2 revs that a 355 rear....
you have 2 3/4 revs....that a 2.73 rear.....
you have 4 1/10 rev....just a hair over 4 even....you have a 4.11 rear....
etc.....
with out taking it apart it's the ONLY true way for you to tell.....
tranny in neutral....grab a majic marker, strike a spot on a tire, strike a spot on the driveshaft.....spin the drive shaft being real careful to count the amount of revs untill the tire spins ONE revolution...
now you WILL have to calculate visually the percentage of one incomplete revolution of the driveshaft.....
so say you have 3 and 1/3 rev.....that means you have a 336 rear....
you have 3 1/2 revs that a 355 rear....
you have 2 3/4 revs....that a 2.73 rear.....
you have 4 1/10 rev....just a hair over 4 even....you have a 4.11 rear....
etc.....
with out taking it apart it's the ONLY true way for you to tell.....
It's easy, I used a china marker on the tire and drive shaft, then lay under the car watching the shaft as my son turned the wheel. God bless, Sensei
