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

89 chevy 1500 700r4 fit a 3rd gen?

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Old Nov 19, 2007 | 07:53 AM
  #1  
Aaron91RS's Avatar
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From: St. Louis
Car: RS
Engine: LS1
Transmission: T56
Axle/Gears: 9" for the ladies
89 chevy 1500 700r4 fit a 3rd gen?

Stock one went out would this work to replace it?
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Old Nov 19, 2007 | 09:34 AM
  #2  
84 z28's Avatar
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From: Rochester NY
Car: 1984 z28
Engine: 355
Transmission: 700r4
Axle/Gears: Moser 9" 4.11
Re: 89 chevy 1500 700r4 fit a 3rd gen?

All 700r4's are interchangeable.
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Old Nov 19, 2007 | 04:50 PM
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From: Casselberry, FLA
Car: 88 V6 'bird/89TBI bird/85 T/A
Engine: 2.8/TBI/TPI
Transmission: V8 T-5/700R4 x2
Axle/Gears: 3.42 open/2.73 open/ 3.27 9 bolt
Re: 89 chevy 1500 700r4 fit a 3rd gen?

EXCEPT!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

What engine do you have? What year is your car?

2.8/3.1/3.4 V6 use a different bolt pattern than the V8

87 and newer use a 31 spline input shaft for the torque converter and older models sometimes use a 27 spline shaft.

YOU MUST KEEP YOUR TAILSHAFT HOUSING FOR YOUR TORQUE ARM MOUNT!

Other than that, they are pretty much interchangeable...
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Old Nov 19, 2007 | 04:54 PM
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Apeiron's Avatar
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From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: 89 chevy 1500 700r4 fit a 3rd gen?

Unless it's from a 4wd or Corvette too, in which cast the tailshaft length is different.
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Old Nov 19, 2007 | 11:52 PM
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Pro Built Automatics's Avatar
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From: Calimesa, California, U.S.
Re: 89 chevy 1500 700r4 fit a 3rd gen?

1984 1/2 and later are all 30 spline input shafts. You will need to change the tail housing. Make sure the TV cable is adjusted correctly.
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Old Nov 20, 2007 | 07:01 PM
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From: louisville, ky
Axle/Gears: '01 3.42 10 bolt
Re: 89 chevy 1500 700r4 fit a 3rd gen?

Originally Posted by 84 z28
All 700r4's are interchangeable.



not quite. as stated by other posters, the v-6 models had a different bell housing. also all v-6, regardless of year, have 27 splines whereas the 84 1/2 up used 30 splines as pro built stated.
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Old May 7, 2014 | 07:05 PM
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Re: 89 chevy 1500 700r4 fit a 3rd gen?

How hard is it to change the tail shaft ?
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Old May 7, 2014 | 07:20 PM
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From: Cave City Ar.
Car: 85 T/A
Engine: 305 TPI
Transmission: 700R4
Axle/Gears: 3.27
Re: 89 chevy 1500 700r4 fit a 3rd gen?

You will probably also need to keep the TV cable from the car to ensure its the right length.
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Old May 8, 2014 | 02:32 AM
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From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: 89 chevy 1500 700r4 fit a 3rd gen?

https://www.thirdgen.org/forums/tech...formation.html




Originally Posted by MTL891500
How hard is it to change the tail shaft ?
The tailshaft or tailshaft housing ?
Big difference
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Old May 8, 2014 | 08:21 PM
  #10  
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Re: 89 chevy 1500 700r4 fit a 3rd gen?

Tailshaft
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Old May 8, 2014 | 08:45 PM
  #11  
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From: Cave City Ar.
Car: 85 T/A
Engine: 305 TPI
Transmission: 700R4
Axle/Gears: 3.27
Re: 89 chevy 1500 700r4 fit a 3rd gen?

That's a complete trans tear down. Is the trans out of a 4WD truck?
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