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Chevrolet
Nova
Drivetrain
Transmission
Replace/Remove
1987 Chevy Nova Transmission change
1987 CHEVROLET NOVA
145,000 MILES • 4 CYL • FWD • AUTOMATIC
GPSJR10
MEMBER
1 POST
I have the A131L 3 speed automatic trans in my Nova. I was wondering if I can install a different Toyota 4 speed trans in it's place.
Aug 27, 2008 at 2:35 AM
MMPRINCE4000
✓
Experienced Mechanic
8,548 POSTS
The A420 is the 4 speed trans. I am not sure if it was offered in '87.
While it would probably bolt up, the ECM's are different as well as shifting control (TV cable vs. Vacuum).
If you still have the owners manual, check to see if it shows the 4 speed.
Sep 12, 2008 at 10:41 PM
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