The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 05-15-2012, 09:26 PM   #1
bigwheel15
Registered User
 
bigwheel15's Avatar
 
Join Date: Feb 2010
Location: Fort Worth, TX
Posts: 727
TH350c worth it?

Well ive always thought I had a standard th350 but after getting under there today to change my pan gasket and filter I found out I have a th350c. The previous owner clipped the wire after about a foot and wrapped the wire around the frame. Now what im wondering is is it worth gathering all the parts to get it to lock up? What are the benefits? I know you can throw it on a toggle switch but I dont really like the idea and dont wanna add any switches to my dash.

BTW I dont mostly city driving with occasional highway driving.
bigwheel15 is offline   Reply With Quote
Old 05-16-2012, 04:04 PM   #2
bigwheel15
Registered User
 
bigwheel15's Avatar
 
Join Date: Feb 2010
Location: Fort Worth, TX
Posts: 727
Re: TH350c worth it?

Anyone?
bigwheel15 is offline   Reply With Quote
Old 05-16-2012, 04:26 PM   #3
monte0185
Registered User
 
monte0185's Avatar
 
Join Date: Oct 2008
Location: Brighton, TN
Posts: 1,267
Re: TH350c worth it?

i wired one up thru my cruis control switch one time that way when i hit the brake it unlocked but there really wasnt much of a benefit. Just did it to see what it would do.
__________________
A computer once beat me at chess, but it was no match for me at kick boxing.

Duct tape is like the force. It has a light side, a dark side, and it holds the world together.
monte0185 is offline   Reply With Quote
Old 05-16-2012, 04:52 PM   #4
Firebirdjones
Registered User
 
Join Date: Oct 2009
Location: Prescott, Arizona
Posts: 2,396
Re: TH350c worth it?

It will only drop the rpm about 2-300. Might notice a very small change in mpg but with a tight stock converter to begin with, it's not all that much.
Firebirdjones is offline   Reply With Quote
Old 05-16-2012, 10:07 PM   #5
rwhit57
Registered User
 
rwhit57's Avatar
 
Join Date: Jan 2011
Location: Tulsa,Okla
Posts: 590
Re: TH350c worth it?

I like mine. Like said the rpm drops about 200 when it locks up. All the stuff is probably still there on yours, if not all you need is vac switch on the firewall. Someone here at one time showed the wiring dia. They seem to be tough trans. I have 130k on mine, still shifts good and the fluid is clean and red.
__________________
"Whoever said money can't buy happiness has obviously never seen a speed shop!
rwhit57 is offline   Reply With Quote
Old 05-16-2012, 10:28 PM   #6
INSIDIOUS '86
Registered User
 
INSIDIOUS '86's Avatar
 
Join Date: Jul 2009
Location: washington
Posts: 4,178
Re: TH350c worth it?

Will keep your trans from overheating and blowing up. Otherwise it's in constant slip and creates more heat than a normal th350
Posted via Mobile Device
__________________
377 sbc thumpr cam autogear m23 muncie 3:73 Detroit trutrac
3''spintech prostreet mufflers xpipe 1 3/4 headers
build thread !http://67-72chevytrucks.com/vboard/s...d.php?t=577217
Iroc gauge threadhttp://67-72chevytrucks.com/vboard/s...d.php?t=554511
INSIDIOUS '86 is offline   Reply With Quote
Old 05-16-2012, 11:47 PM   #7
bigwheel15
Registered User
 
bigwheel15's Avatar
 
Join Date: Feb 2010
Location: Fort Worth, TX
Posts: 727
Re: TH350c worth it?

Quote:
Originally Posted by rwhit57 View Post
I like mine. Like said the rpm drops about 200 when it locks up. All the stuff is probably still there on yours, if not all you need is vac switch on the firewall. Someone here at one time showed the wiring dia. They seem to be tough trans. I have 130k on mine, still shifts good and the fluid is clean and red.
All the stuff for it is long gone but I could go junkyard hunting and scrounge up the parts necessary. I did some searching and found the steps necessary to get it functioning, is there a way to test to see if it still locks up correctly?
bigwheel15 is offline   Reply With Quote
Old 05-17-2012, 01:33 AM   #8
rwhit57
Registered User
 
rwhit57's Avatar
 
Join Date: Jan 2011
Location: Tulsa,Okla
Posts: 590
Re: TH350c worth it?

If you put 12v to the solenoid on the trans. it should work. I would try it through a toggle and see. Correctly it's wired through the brake switch and the vacuum solenoid on the firewall.
__________________
"Whoever said money can't buy happiness has obviously never seen a speed shop!
rwhit57 is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 07:26 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com