Transmissions and Drivetrain Need help with your trans? Problems with your axle?

whats correct ratio for 82 trans am LG4 thm200c ?

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Old Dec 5, 2002 | 02:06 AM
  #1  
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From: 62656
Car: 1991 S10 pickup 2700lbs
Engine: 4.3L Z TBI
Transmission: 700R4
Axle/Gears: 3.08 7.625"
whats correct ratio for 82 trans am LG4 thm200c ?

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Last edited by Randy82WS7; Apr 11, 2006 at 02:41 PM.
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Old Dec 5, 2002 | 04:08 AM
  #2  
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From: Northern CA.
Car: '82 Z28
Engine: 350
Transmission: TH400 4,000 stall
Axle/Gears: Currie 9", 4.56 gears
Probably 2.73, don't think you'll be finding a build sheet in an 82
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Old Dec 5, 2002 | 07:22 PM
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From: Stouffville, Ontario
Car: 83WS6TA
Engine: ZZ4
Transmission: TH350C
Axle/Gears: 3:23
I have an 83 TA, LG4 with J65 brakes and a 200C. It has 3:23 gears in it from the factory. I have the dealer options list for the car and it shows the 3:23 as being a sport option or something.

I've seen a chart somewhere (on this board I think) that shows what was available for each year.
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Old Dec 5, 2002 | 10:18 PM
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From: 62656
Car: 1991 S10 pickup 2700lbs
Engine: 4.3L Z TBI
Transmission: 700R4
Axle/Gears: 3.08 7.625"
3,23 is a 7.5" ratio ? i thought that was a borg warner ratio ?

and no build sheets in the 82's ?? so not only is there no SPID label, but there is no sheet either ??

that is NOT a good thing at all...

when was first year for build sheet in F body ? i know there was a sheet in the 83 cars at least the B bodies cuz i keep finding pieces of it under the front seat in the 83 caprice i drive,

thanks for anything further

R
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Old Dec 5, 2002 | 10:39 PM
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From: Stouffville, Ontario
Car: 83WS6TA
Engine: ZZ4
Transmission: TH350C
Axle/Gears: 3:23
For what it's worth, and according to the option sheet, that's what's in it??
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Old Dec 5, 2002 | 10:42 PM
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SSC
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From: Pueblo Co
Car: 1989 C4
Engine: L98
Transmission: 700r4
Axle/Gears: 307
I found the build sheet (what was left of it) under the passenger side seat stuffed up into the seat springs. Chances are its a 2.73. If you dont know the ratio theres a good chance the rear end has NEVER been serviced, time to kill two birds with one stone.
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Old Dec 5, 2002 | 11:47 PM
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From: 62656
Car: 1991 S10 pickup 2700lbs
Engine: 4.3L Z TBI
Transmission: 700R4
Axle/Gears: 3.08 7.625"
Originally posted by George
For what it's worth, and according to the option sheet, that's what's in it??
interesting,,

maybe 3.27 is the borg ratio im thinking of


hmmm,,


thanks
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Old Dec 5, 2002 | 11:48 PM
  #8  
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From: 62656
Car: 1991 S10 pickup 2700lbs
Engine: 4.3L Z TBI
Transmission: 700R4
Axle/Gears: 3.08 7.625"
Originally posted by SSC
I found the build sheet (what was left of it) under the passenger side seat stuffed up into the seat springs. Chances are its a 2.73. If you dont know the ratio theres a good chance the rear end has NEVER been serviced, time to kill two birds with one stone.
looks like i need to unbolt seat and dig through under it then, i completely pulled up rear carpeting and came up with nothing



thanks
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Old Dec 6, 2002 | 12:09 AM
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If it has WS6, it came standard with a 2.93- optional 3.23. From May on, it could have 3.23 at no extra charge.
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Old Dec 6, 2002 | 07:32 AM
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From: Northern CA.
Car: '82 Z28
Engine: 350
Transmission: TH400 4,000 stall
Axle/Gears: Currie 9", 4.56 gears
I've found no build sheet in mine (so far) seats have been redone but I never saw anything under them
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Old Dec 6, 2002 | 10:09 PM
  #11  
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From: 62656
Car: 1991 S10 pickup 2700lbs
Engine: 4.3L Z TBI
Transmission: 700R4
Axle/Gears: 3.08 7.625"
Originally posted by 90TA
If it has WS6, it came standard with a 2.93- optional 3.23. From May on, it could have 3.23 at no extra charge.
no idea, apparently theres no way to find out RPO's on a car before 84, crappy,.,,

i know that its a t/a cuz has the dome hood and all GFX and tinted taillights, hmm..



thanks
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Old Dec 7, 2002 | 12:11 AM
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If it has 4-wheel disc brakes, it has WS6.
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Old Dec 7, 2002 | 01:42 PM
  #13  
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From: 62656
Car: 1991 S10 pickup 2700lbs
Engine: 4.3L Z TBI
Transmission: 700R4
Axle/Gears: 3.08 7.625"
Originally posted by 90TA
If it has 4-wheel disc brakes, it has WS6.
rear disc available in 82 even ? i thought was an 83 or 84-up thing ?

even so this is just a t/a its LG4 not L69

WS6 are pretty uncommon, ive only come across one and it was an '85, was 3.08 posi disc i didnt want junk like that so i sold it for 30 bucks


thanks
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Old Dec 7, 2002 | 03:24 PM
  #14  
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Originally posted by Fast68
rear disc available in 82 even ? i thought was an 83 or 84-up thing ?
Yes, it started with WS6 in '79.
During a rear disc shortage in '82, WS7-(WS6 minus rear disc) replaced WS6. WS6 was manditory on the LU5.

even so this is just a t/a its LG4 not L69
If it doesn't have a posi, it is a 2.73
'82 LG4 without WS6 or WS7 has a 2.73
'82 LG4 with WS6 or WS7 has 3.23

It is the '82 LU5 that is 2.93 or 3.23

WS6 are pretty uncommon, ive only come across one and it was an '85, was 3.08

There are plenty out there.
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Old Dec 7, 2002 | 04:32 PM
  #15  
Randy82WS7's Avatar
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From: 62656
Car: 1991 S10 pickup 2700lbs
Engine: 4.3L Z TBI
Transmission: 700R4
Axle/Gears: 3.08 7.625"
2.73, ouch, i hate those gears, glad i came across a 3.42 to put under the car D

thanks for your info glad to learn that 79 was first year for WS6

still is too bad are no way of knowing RPO's on a '83-down car, thats crazy..
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