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

can't fit the THM 350

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Old 11-27-2004, 11:49 AM
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Car: '88 Firebird Formula 350
Engine: Built 383 TPI
Transmission: Built 700r4
Axle/Gears: 9 bolt, 3.27:1 Posi
can't fit the THM 350

I'm trying to swap a 350 in, but my torque converter won't slide all the way down the input shaft. The T/C hits the ring gear before the trans contacts the engine. And when I try to pull the t/c off of the trans, it gets stuck. All other trans that I've delt with, the t/c slides back and forth about an inch with no problem.

Rebuilt THM 350
New TCI t/c

Anybody?
Old 11-27-2004, 11:55 AM
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Car: 1966 impala , 1998 sebring vert,1978 buick regal turbo, 1991 chevy silverado 3/4ton 4x4 lifted
Engine: 283, 2.5,3.8 turbo 350
Transmission: powerglide,auto overdrive, th350,4L80
Re: can't fit the THM 350

Originally posted by stingerssx
I'm trying to swap a 350 in, but my torque converter won't slide all the way down the input shaft. The T/C hits the ring gear before the trans contacts the engine. And when I try to pull the t/c off of the trans, it gets stuck. All other trans that I've delt with, the t/c slides back and forth about an inch with no problem.

Rebuilt THM 350
New TCI t/c

Anybody?
when you installed the torque converter did you spin it clockwise until it clicked in ?

you should be spinning it untill it clicks in and pushes in a litte bit atleast three clicks....
Old 11-27-2004, 04:59 PM
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Car: '88 Firebird Formula 350
Engine: Built 383 TPI
Transmission: Built 700r4
Axle/Gears: 9 bolt, 3.27:1 Posi
Turns out that I'm a moron.

I just had some rust on the input shaft spline. Cleaned it up with a wire wheel, and pushed on the T/C, and it went down all the way. It still doesn't slide too easy though. I hooked it up but when I was bolting it to the flexplate, it didn't slide too easy.

Just need to hook everything else up right now.

Btw, its' for my '73 nova.
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