Th350 vs Th350C
Race Director
Joined: Jan 2000
Posts: 12,399
Likes: 247
From: San Jose CA
Re: Th350 vs Th350C (Justin79-L-82)
I THINK the TH-350C was on 80 LG4s and all L81 autos. I may be crazy.
I'll go check to verify.
*edit* Yep! Haynes lists 80 LG4 and 1981 Automatics as having "TH 350 w/ lock-up converter."
-Steve
[Modified by Pacin'California, 2:54 PM 2/6/2003]
I'll go check to verify.
*edit* Yep! Haynes lists 80 LG4 and 1981 Automatics as having "TH 350 w/ lock-up converter."
-Steve
[Modified by Pacin'California, 2:54 PM 2/6/2003]
Le Mans Master
Joined: Mar 2002
Posts: 7,456
Likes: 2
From: Coming home from Luckenbach Texas
Re: Th350 vs Th350C (Justin79-L-82)
You have a TH350. But you don't want a shift kit or a high-stall converter...you want an overdrive tranny! If you can't afford it, start putting your change in a jar :D
Team Owner
Joined: May 2001
Posts: 29,745
Likes: 3
From: Exiled to Richmond, VA - Finally sold my house in Murfreesboro, TN ?? Corner of "Bumf*&k and 'You've got a purdy mouth'."
CI 6-7-8 Veteran
CI-VIII Burnout Champ
St. Jude Donor '06-'10, '13
Re: Th350 vs Th350C (page62)
My 1980 L-48 had a T350C tranny. The lockup feature was nice, but no where near as good as a 200R4 or 700R4 with the 4th gear AND lockup converter.
In the 1980 lockup was controlled by a combination of a vacuum switch and break pedal switch.
1981 it was controlled by the computer.
1982 it was changed to a 700R4.
In the 1980 lockup was controlled by a combination of a vacuum switch and break pedal switch.
1981 it was controlled by the computer.
1982 it was changed to a 700R4.
Le Mans Master
Joined: Feb 1999
Posts: 8,351
Likes: 75
From: Tampa Bay FL
Re: Th350 vs Th350C (Justin79-L-82)
My understanding is that I had the TH350C. It had the lockup converer controlled by a vacuum switch/sensor switch mounted on the firewall to the upper left of the distributor. Since the TH350C isn't the TH350, my understanding is that it doesn't respond the same to hopups (ie. I don't know of ANY high stall lock-up converters for the TH350C) in same manner as a good TCI or B&M build TH350 trans and corresponding converter.
That's the primary reason I opted for the 700R4 (plus the overdrive of course!)
When I installed the 700R4, I used the lockup wiring that came with it and disconnected/taped up the old 1-wire switch.
That's the primary reason I opted for the 700R4 (plus the overdrive of course!)
When I installed the 700R4, I used the lockup wiring that came with it and disconnected/taped up the old 1-wire switch.
Pro
Joined: Dec 2000
Posts: 560
Likes: 0
From: Camino CA
Re: Th350 vs Th350C (TedH)
TCI makes a couple of different high stall lockup converters for the TH-350C
http://tciauto.com/converters/conver...plications.htm
http://tciauto.com/converters/conver...plications.htm
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Melting Slicks
Joined: Aug 2001
Posts: 3,041
Likes: 122
From: Wichita KS
Re: Th350 vs Th350C (Justin79-L-82)
My 1980 L-48 has its original 350C transmission. It uses a vacuum switch mounted on the firewall to control lockup.
For alternative transmissions you should check to determine what (if any) modifications will be needed to the transmission support cross member. Also will the transmission ratios be appropriate with the 3.07 gearing in the differential?
For alternative transmissions you should check to determine what (if any) modifications will be needed to the transmission support cross member. Also will the transmission ratios be appropriate with the 3.07 gearing in the differential?
