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

Speed Sensor swap?

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Old 05-02-2012, 12:00 AM
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Car: 1988 Pontiac Firebird
Engine: 4bbl 305
Transmission: Turbo 350
Speed Sensor swap?

Hello all, I am doing the finishing touches on my swap from the 2.8 v6 to a 4bbl 350 in my 88 firebird, I got a 700r4 out of an 89 chevy 1500 pickup, the speed sensor in the tranny appears to be magnetic, the plug from my stock harness wont work, i tried going to the jy and pulling a speed sensor out of a r4 but the little gear wheel on it didn't line up inside the transmission, any helpful advice? do i have to go to an aftermarket speedo?
Old 05-02-2012, 01:15 PM
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jmd
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Car: `86 SS / `87 SS
Engine: L69 w/ TPI on top / 305 4bbl
Transmission: `95 T56 \ `88 200-4R
Re: Speed Sensor swap?

Your V6 700-R4 had the right parts stock. Your TH350 might, since the right tailhousing allows those parts to fit it.

A 86-92 Firebird has the right speedo parts.
A 90-92 Camaro does too.

There are two VSS's, one for 41-45 teeth or 34-39 (or something like that.

Pull the tailhousing, remove any lock-rings and, tap the truck reluctor gear off. Put the right speedo gear on (from the applications above) and with the right tailhousing, install the VSS with it's gear.
Old 05-02-2012, 10:51 PM
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Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: Speed Sensor swap?

get a drac
Old 05-02-2012, 10:56 PM
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Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: Speed Sensor swap?

https://www.thirdgen.org/forums/diy-...ico-trans.html
Old 05-03-2012, 01:54 AM
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Car: 1988 Pontiac Firebird
Engine: 4bbl 305
Transmission: Turbo 350
Re: Speed Sensor swap?

thanks yall, you were a big help
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