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 11-18-2017, 11:24 AM   #1
Man With A Gun
Registered User
 
Man With A Gun's Avatar
 
Join Date: Apr 2015
Location: Northwest Florida
Posts: 287
Swap cruise control from 86 GMC C3500 to 77 Chevt K20?

I'm sure I'd need to swap the carbs, but could it be done?
__________________
77 Chevy K20 Longbed
86 GMC C3500 Dually
07 Silverado 2500HD

All standard cabs
Man With A Gun is offline   Reply With Quote
Old 11-19-2017, 08:44 PM   #2
Man With A Gun
Registered User
 
Man With A Gun's Avatar
 
Join Date: Apr 2015
Location: Northwest Florida
Posts: 287
Re: Swap cruise control from 86 GMC C3500 to 77 Chevt K20?

Anyone?
__________________
77 Chevy K20 Longbed
86 GMC C3500 Dually
07 Silverado 2500HD

All standard cabs
Man With A Gun is offline   Reply With Quote
Old 11-22-2017, 02:28 AM   #3
Man With A Gun
Registered User
 
Man With A Gun's Avatar
 
Join Date: Apr 2015
Location: Northwest Florida
Posts: 287
Re: Swap cruise control from 86 GMC C3500 to 77 Chevt K20?

Are they two different systems?

Are any components common to the two?
__________________
77 Chevy K20 Longbed
86 GMC C3500 Dually
07 Silverado 2500HD

All standard cabs
Man With A Gun is offline   Reply With Quote
Old 11-22-2017, 11:40 AM   #4
gmachinz
Account Suspended
 
Join Date: Jun 2011
Location: Des Moines, IA.
Posts: 4,143
Re: Swap cruise control from 86 GMC C3500 to 77 Chevt K20?

you can use the 86 setup in the 77. The harness is altgether different however as are the transducers. There are also circuit for dis-engaging the lockup converter-are you using an OD transmission?
gmachinz is offline   Reply With Quote
Old 11-23-2017, 01:19 AM   #5
Man With A Gun
Registered User
 
Man With A Gun's Avatar
 
Join Date: Apr 2015
Location: Northwest Florida
Posts: 287
Re: Swap cruise control from 86 GMC C3500 to 77 Chevt K20?

The 86 uses a THM 400 I think and the 77 came with a THM 400 originally but now has a THM 350.
__________________
77 Chevy K20 Longbed
86 GMC C3500 Dually
07 Silverado 2500HD

All standard cabs
Man With A Gun 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 11:04 AM.


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