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 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 07-09-2007, 01:09 PM   #1
my70chevyc10
Registered User
 
my70chevyc10's Avatar
 
Join Date: Jul 2007
Location: Covina Calif
Posts: 172
3 speed trans

HHHEEELLLPPP i want to convert my 70 C10 SWB to a Turbo 350 and wanted to know if i need a new cross member or can i use the one from the 3 speed trans any help.
my70chevyc10 is offline   Reply With Quote
Old 07-09-2007, 01:14 PM   #2
WorkinLonghorn
Senior Member
 
WorkinLonghorn's Avatar
 
Join Date: Dec 2006
Location: Studio City, Calif.
Posts: 2,883
Re: 3 speed trans

I think you need one,at least I did for changing from 4spd to 350. I never did the switch so if you want to swing by I'll give it to you. -(in Studio City)
__________________
'69 GMC C2500 Custom Camper, 8 1/2' bed, New GM 350, NP 435 Close Ratio 4spd. Trans., 3.73 Dana-60 open.Camper and Trailer wiring, PS, PB, AC, tach , three gas tanks, stereo speakers, 2nd owner, Work-Truck supreme.
WorkinLonghorn is offline   Reply With Quote
Old 07-09-2007, 01:44 PM   #3
quickpm
Junior Member
 
quickpm's Avatar
 
Join Date: May 2007
Location: Fort Worth, TX
Posts: 47
Re: 3 speed trans

I had only a bellhousing crossmember from my 3 speed. If yours is the same, I'd say you definitely need a new crossmember for a TH350.
__________________
72 C10 Long Bed, Vortec 350, Muncie M20, 3.73 Posi
79 Camaro, Vortec 350, Muncie M21, 3.90 Posi
07 BMW 328i, Wife's
quickpm is offline   Reply With Quote
Old 07-09-2007, 03:10 PM   #4
shifty
Questionable
 
shifty's Avatar
 
Join Date: Mar 2005
Location: Atlanta
Posts: 13,373
Re: 3 speed trans

my 3spd used a totally different crossmember, and it was in a completely different location. 3spd is farther forward and has two mounting points, offset from center (one on the left, one on the right). auto mounts in the very middle of the crossmember, and about a foot farther back.
__________________
If I've got anything up for grabs, it'll be here: 7-hole gauge cluster for a 67-72 p/u FREE (link)

I can't check the forum daily. If I don't reply to you within 24 hours, drop me a PM! I'm (hopefully) still alive and will reply faster to a PM.
shifty is offline   Reply With Quote
Old 07-09-2007, 03:19 PM   #5
nplocoman
never finish start another
 
nplocoman's Avatar
 
Join Date: Mar 2007
Location: North Platte Nebraska
Posts: 432
Re: 3 speed trans

there's one on e-bay #290136559378. looks like everthing you need for a complete conversion. If nothing else, look at the picture!
nplocoman is offline   Reply With Quote
Old 07-09-2007, 03:32 PM   #6
shifty
Questionable
 
shifty's Avatar
 
Join Date: Mar 2005
Location: Atlanta
Posts: 13,373
Re: 3 speed trans

compare that with the 3spd crossmember:

http://satellitehead.com/images/68ch...%20%282%29.jpg

here is the auto crossmember:

http://satellitehead.com/gallery/dis...207&fullsize=1
__________________
If I've got anything up for grabs, it'll be here: 7-hole gauge cluster for a 67-72 p/u FREE (link)

I can't check the forum daily. If I don't reply to you within 24 hours, drop me a PM! I'm (hopefully) still alive and will reply faster to a PM.
shifty 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 04:55 PM.


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