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 Chevy/GMC Suburbans & Panels Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 07-28-2008, 07:04 PM   #1
mag-d
Registered User
 
Join Date: Nov 2006
Location: Iowa
Posts: 13
Trans swap is 68 suburban

I have a 68 suburban C-10, factory 3 speed manual trans. I want to replace the 3 speed manual with a 350 turbo trans.

Does anybody know rather I need a short or long tail trans for the replacement, also do I need to replace the yoak on the drive shaft or will the factory original shaft work.

Your help is apreciated.
mag-d is offline   Reply With Quote
Old 07-28-2008, 07:44 PM   #2
JimKshortstep4x4
Senior Member
 
Join Date: Jul 2001
Location: Muskegon,MI,USA
Posts: 6,026
Re: Trans swap is 68 suburban

A short tail 350 will swap in and can use the existing driveshaft as is.

Jim
__________________
1971 Shortbox step side 4x4, 350 sbc, 3:07 rear end
1965 Impala SS 400 sbc, Muncie rock crusher
1966 Impala SS 396 bbc, TH 400
1969 El Camino, 350 sbc, TH 350
1971 Snowplow built on a Blazer frame
1972 GMC Short bed, stepside, TH 400, 427 BBC
JimKshortstep4x4 is offline   Reply With Quote
Old 07-28-2008, 07:56 PM   #3
mag-d
Registered User
 
Join Date: Nov 2006
Location: Iowa
Posts: 13
Re: Trans swap is 68 suburban

So is the splines on the 3 speed and the auto trans the same, and i can use the drive shaft as is
mag-d is offline   Reply With Quote
Old 07-29-2008, 07:42 AM   #4
JimKshortstep4x4
Senior Member
 
Join Date: Jul 2001
Location: Muskegon,MI,USA
Posts: 6,026
Re: Trans swap is 68 suburban

Yes, the splines are the same.

Jim
__________________
1971 Shortbox step side 4x4, 350 sbc, 3:07 rear end
1965 Impala SS 400 sbc, Muncie rock crusher
1966 Impala SS 396 bbc, TH 400
1969 El Camino, 350 sbc, TH 350
1971 Snowplow built on a Blazer frame
1972 GMC Short bed, stepside, TH 400, 427 BBC
JimKshortstep4x4 is offline   Reply With Quote
Old 07-29-2008, 04:11 PM   #5
GMCPaul
Senior Member
 
Join Date: Mar 2000
Location: Rockville,In. USA
Posts: 3,718
Re: Trans swap is 68 suburban

JimKshortstep4x4 called it right the only thing you need to change is the transmission, trans. linkage & transmission crossmember.
We carry a new style automatic trans crossmember here if interested
http://www.gmcpauls.com/auto.transmission.htm
for $70.00
GMCPaul
GMCPaul is offline   Reply With Quote
Old 07-29-2008, 04:13 PM   #6
Longhorn Man
its all about the +6 inches
 
Longhorn Man's Avatar
 
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
Re: Trans swap is 68 suburban

and a rad with a cooler, linkages and linkage mounts, a column or an aftermarket shifter
Longhorn Man is offline   Reply With Quote
Old 07-29-2008, 10:16 PM   #7
mag-d
Registered User
 
Join Date: Nov 2006
Location: Iowa
Posts: 13
Re: Trans swap is 68 suburban

Ya I forgot about the trans cooler, Im figuring on a Ididit colum, don't want a floor shifter. I was looking at a trans crossmember from classic performance.
I don't know If i will change radiators or run a external cooler.
mag-d is offline   Reply With Quote
Old 07-30-2008, 12:59 PM   #8
BlueJeep
Registered User
 
BlueJeep's Avatar
 
Join Date: Mar 2008
Location: Waukee, Iowa
Posts: 1,608
Re: Trans swap is 68 suburban

Do an external cooler, they're much better at cooling the tranny than one in the radiator.
__________________
build threads:

86 Suburban
88 Jeep 6.0 swap
49 Chevy truck
54 Chevy wagon

86 Suburban lowered 4/6
54 Chevy wagon
49 Chevy/s10 mix
88 Jeep Wrangler rockcrawler
BlueJeep 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 10:56 PM.


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