Rear axle ratio question
Thread Starter
Racer
Joined: Jul 2011
Posts: 292
Likes: 4
From: LI NY
Rear axle ratio question
I recently got a copy of my build sheet and I was suprised to see that I have 2:87 gears in my 82(code HK1). All I have read says the 2:87's were in the Collectors edition only and all others had 2:72's. (I do not have a CE)
Does anyone know if the higher gears part of the Gymkhana suspension?
Does anyone know if the higher gears part of the Gymkhana suspension?
Burning Brakes
Joined: Feb 2006
Posts: 1,223
Likes: 4
From: Regina Saskatchewan
Under '82 specs - here's what I found :
Automatic Transmission
Four-speed Turbo Hydra-Matic (TMH 700-R4)
floor-mounted gear shifter
gear ratios
1st = 3.06:1
2nd = 1.63:1
3rd = 1.00:1
4th = 0.70:1
Rev = 2.29:1
Final drive ratio: 2.72:1 (except 2.87:1 with aluminum wheels)
So if yours came with aluminuim wheels - you got the 2.87s
Automatic Transmission
Four-speed Turbo Hydra-Matic (TMH 700-R4)
floor-mounted gear shifter
gear ratios
1st = 3.06:1
2nd = 1.63:1
3rd = 1.00:1
4th = 0.70:1
Rev = 2.29:1
Final drive ratio: 2.72:1 (except 2.87:1 with aluminum wheels)
So if yours came with aluminuim wheels - you got the 2.87s
Last edited by couperdecar; Aug 24, 2011 at 02:33 AM.
Race Director
Joined: Oct 2000
Posts: 12,678
Likes: 3,129
From: Shamong, NJ
This is correct. 1982 Corvettes with standard rally wheels, came with a 2:72 rear gear, while cars ordered with the optional aluminum wheels got the 2:87 gear. There were no optional rear gear ratios available in 82.FE7 Gymkhana Suspension included different springs (including a steel rear spring in place of the fiberglass one), shocks, a rear sway bar and a bigger front bar. Gymkhana had no bearing on the gear ratio used.
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Team Owner
Joined: Jun 2000
Posts: 38,923
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From: Southbound
Cruise-In II Veteran
I'm guessing the reduced weight of the aluminum wheels could be involved?
