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

5 Speed! Well it was, I think.

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Old 12-10-2012, 08:32 PM
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Car: 1986 Z28
Engine: 305ci
Transmission: 700R4
5 Speed! Well it was, I think.

As I continue to dig into my 86Z more I learn more. I reviewed all the RPO codes in the center console. The VIN does match the car VIN. What has me curious is the RPO code for a 5 Speed trasmission...... There is a 700R4 in the car...

Where can I look to see if the car actually was a 5 speed? Are there wires or brackets that would still be there? Is there another way to confirm?
Old 12-10-2012, 08:53 PM
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Car: 88 Firebird.
Engine: 383 HSR
Transmission: 700R4
Axle/Gears: 9 Bolt, 3.27:1 Diskbrakes
Re: 5 Speed! Well it was, I think.

What about the shifter hole in the floor?
Old 12-10-2012, 09:46 PM
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Engine: Usually
Transmission: Sometimes
Axle/Gears: Behind me somewhere
Re: 5 Speed! Well it was, I think.

Pedal assy, wiring, shifter hole, clutch master cyl hole, .... should be able to spot that swapperoo from across the parking lot.
Old 12-11-2012, 11:04 AM
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Car: 1986 Z28
Engine: 305ci
Transmission: 700R4
Re: 5 Speed! Well it was, I think.

Originally Posted by sofakingdom
Pedal assy, wiring, shifter hole, clutch master cyl hole, .... should be able to spot that swapperoo from across the parking lot.
Forgive my stupidity!!!!
Where would these be located if it was a 5 speed? I will look under the dash for signs, but I know there is no clutch pedal. I guess going back to a 5 speed will be fun.

The center console looks intact and is setup for automatic
Old 12-11-2012, 05:50 PM
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Car: Yes
Engine: Usually
Transmission: Sometimes
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Re: 5 Speed! Well it was, I think.

Auto brake pedal is likw 6" wide, clutch brake pedal is like 2½" wide.

Clutch MC hole is right behind the pedal... around 1½" dia with 2 smaller holes around it. You can see it from either the firewall side or the interior.

Shifter hole is .... a hole. Automatics have nothing of the kind. The whole trans tunnel (a discrete piece of sheet metal in the car assy) is different. Pop the top off the console.
Old 12-11-2012, 07:16 PM
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Car: `86 SS / `87 SS
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Transmission: `95 T56 \ `88 200-4R
Re: 5 Speed! Well it was, I think.

The only evidence you have is the console that's obviously from another car.

Yeah.

People that are too lazy to remove a decal are also too lazy to change pedals.
Old 12-12-2012, 01:05 AM
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Car: 1988 GTA
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Re: 5 Speed! Well it was, I think.

Originally Posted by jmd
The only evidence you have is the console that's obviously from another car.

Yeah.

People that are too lazy to remove a decal are also too lazy to change pedals.
Console is original, with SPID sticker that matches VIN. It's the same for auto and manual, only the trim plates are different so it doesn't need to changed for swap.
Old 12-12-2012, 07:43 AM
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Car: 1986 Z28
Engine: 305ci
Transmission: 700R4
Re: 5 Speed! Well it was, I think.

Originally Posted by sofakingdom
Auto brake pedal is likw 6" wide, clutch brake pedal is like 2½" wide.

Clutch MC hole is right behind the pedal... around 1½" dia with 2 smaller holes around it. You can see it from either the firewall side or the interior.

Shifter hole is .... a hole. Automatics have nothing of the kind. The whole trans tunnel (a discrete piece of sheet metal in the car assy) is different. Pop the top off the console.
Let me look at the pedals again. I swear the brake pedal is the larger one that an automatic has. I am reaching... But this may explain why the Service/Dust cover is missing from the 700R4 in the car.
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