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

82 700r4 swap

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Old Apr 29, 2012 | 11:21 PM
  #1  
82z28 wrencher's Avatar
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From: bloomington il
Car: 84 Trans Am
Engine: 350
Transmission: 700r4
Axle/Gears: 10 bolt 3.73 factory
82 700r4 swap

The 200C cars came with different crossmember mounting holes in the frame of the car then the 1984-199292 700R4 cars did. Our crossmember utilizes your 200C mounting holes and places the transmission mounting hole where it needs to be to install the 700R4- (hawks Thirdgen)

ummm is this correct can i just get a 84-92 stock 700r4 crossmember? will it line up with my holes in my frame? trying to do the swap before TGF12 haveing too get a aftermarket crossmember will put a crunch on it
Thxs
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Old Apr 29, 2012 | 11:43 PM
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8t2 z-chev's Avatar
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From: belle fourche,s.d.
Car: '82 z28
Engine: L83 5.7
Transmission: 700r4-1985
Axle/Gears: 3.42 posi
Re: 82 700r4 swap

IIRC,back when i put a 700r4 in my '82,the two rear
holes for the th200 x member were re-used for the
front holes of the 700 x member,one existing hole was
there for a rear bolt of 700 xmember but didn't have
theaded insert,and the 4th hole had to be drilled.
i don't remember any major difficulties.
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Old Apr 30, 2012 | 12:02 AM
  #3  
82z28 wrencher's Avatar
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From: bloomington il
Car: 84 Trans Am
Engine: 350
Transmission: 700r4
Axle/Gears: 10 bolt 3.73 factory
Re: 82 700r4 swap

sweet just what i wanted to know. how did u solve the makeing threads for the 2 rear holes? did u just weld in a nut into the frame? just wondering lol
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Old Apr 30, 2012 | 12:15 AM
  #4  
8t2 z-chev's Avatar
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From: belle fourche,s.d.
Car: '82 z28
Engine: L83 5.7
Transmission: 700r4-1985
Axle/Gears: 3.42 posi
Re: 82 700r4 swap

just put a washer and nut on the other side-was a bit of
a trick to get the washer,nut and a wrench in there as i
recall,but nothing too hard.
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Old May 16, 2012 | 07:19 PM
  #5  
82z28 wrencher's Avatar
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From: bloomington il
Car: 84 Trans Am
Engine: 350
Transmission: 700r4
Axle/Gears: 10 bolt 3.73 factory
Re: 82 700r4 swap

more ?s for the swap. What did you do for shift cables? were u able to use stock? did you need any relocation brackets? and is the torque arm the same length as the 700r4 torque arm? if you could go into fine detail i got a 700 r4 shifter and crossmember.
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Old May 16, 2012 | 08:11 PM
  #6  
8t2 z-chev's Avatar
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From: belle fourche,s.d.
Car: '82 z28
Engine: L83 5.7
Transmission: 700r4-1985
Axle/Gears: 3.42 posi
Re: 82 700r4 swap

can't remember if i used stock or not,do remember
that with the 700r4 that the cable ends up in kind of
an "s"shape making shift movement stiff compaired
to the TH350 setup i had in before(super T-10 before
that)I tried a brand new cable from the dealer and
it was a little better but still stiff.A stock 700r4
shifter from '84 z was used,but i think an '82 3spd
shifter could be modified to work if 700r4 shift not
readily avalible.
Torque arm length is different-a 700 torque arm will
be needed.Same thing with driveshaft.
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Old May 16, 2012 | 08:34 PM
  #7  
82z28 wrencher's Avatar
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From: bloomington il
Car: 84 Trans Am
Engine: 350
Transmission: 700r4
Axle/Gears: 10 bolt 3.73 factory
Re: 82 700r4 swap

ok ill get a torque arm from parts car in junkyard (one was allready out) and ill see if i can get a stock cable as well (seems reman ones are junk) if anything else pops back up into memory lol let me know
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