How to tell if my 700r4 is pre '86 or 87 and later?
09-01-2008, 03:24 PM
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Car: 1991 Camaro RS 5.0
Engine: TBI 5.0L V8
Transmission: 700R4
Axle/Gears: 2.73
How to tell if my 700r4 is pre '86 or 87 and later?
I just got a free 700r4 tranny from my sister's friend. He said it came out of an 87 iroc but who knows. How can I tell if it's a pre 1986 or 1987 and later version? The front pump # is 8654303 and the pass. side rear stamped # is 5YP064C. Is there a tranny decoder somewhere that will tell me what this tranny came out of? Thanks.
09-01-2008, 09:27 PM
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Car: '92 RS
Engine: 350 carb'd
Transmission: T-5
Axle/Gears: 4.10
Re: How to tell if my 700r4 is pre '86 or 87 and later?
Drop the pan and see if it has a metal tube running from the valve body. Cant remember where it runs to.
09-02-2008, 12:29 AM
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Car: 1991 Camaro RS 5.0
Engine: TBI 5.0L V8
Transmission: 700R4
Axle/Gears: 2.73
Re: How to tell if my 700r4 is pre '86 or 87 and later?
Can someone help me decode the #'s on this tranny or point me to where I can find out? Thanks.
09-03-2008, 09:08 PM
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Car: 83 z28
Engine: boat anchor 305 (ex CFI)
Transmission: 700r4
Axle/Gears: 3.23 10 bolt
Re: How to tell if my 700r4 is pre '86 or 87 and later?
The early 700's had 27 spline input shafts. The later ones had 31(I think)
09-04-2008, 03:10 PM
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Car: 1991 Camaro RS 5.0
Engine: TBI 5.0L V8
Transmission: 700R4
Axle/Gears: 2.73
Re: How to tell if my 700r4 is pre '86 or 87 and later?
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09-04-2008, 04:37 PM
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Re: How to tell if my 700r4 is pre '86 or 87 and later?
Keep it around for spare parts. The 1987 and up cases are different in the valve body area, and have a tube that goes from the front pump to the forward accumulator (auxiliary valve body), that the early ones did not have. My last name is Wilkes (Welsh origin). Dana
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