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 03-31-2009, 10:33 PM   #1
ole6320
Registered User
 
Join Date: Dec 2008
Location: Golden Valley MN
Posts: 18
6 lug to 5 lug rear

Hi everyone I have a 86 c10 and i have a 86 12 bolt posi laying around but it has the 6 lug bolt patter. I have a 10 bolt non-posi under the truck right now, what is involved on maiking the rear end a 5 lug? Can I just swap the axles out? Or is it more complicated than that? Thanks!
__________________
1986 Chevy C-10 2WD Long Box
406 SBC 12.5/1 compression
E-85 monster!
ole6320 is offline   Reply With Quote
Old 04-04-2009, 11:24 AM   #2
ole6320
Registered User
 
Join Date: Dec 2008
Location: Golden Valley MN
Posts: 18
Re: 6 lug to 5 lug rear

ttt
__________________
1986 Chevy C-10 2WD Long Box
406 SBC 12.5/1 compression
E-85 monster!
ole6320 is offline   Reply With Quote
Old 04-04-2009, 11:34 PM   #3
THE UGLY
Registered User
 
THE UGLY's Avatar
 
Join Date: Apr 2009
Location: Fort Collins Colorado
Posts: 69
Re: 6 lug to 5 lug rear

if you can find a 5 lug 12 bolt at the junk yard the axle will bolt right in where the 6 lugs are. you will nead the drums for the 5 lug brakes and make sure the drum diamiter is the same
THE UGLY is offline   Reply With Quote
Old 04-05-2009, 12:02 AM   #4
gchemist
BAD BOW-Silverado XST
 
gchemist's Avatar
 
Join Date: May 2000
Location: Senior Member from Austin, TX
Posts: 6,431
Re: 6 lug to 5 lug rear

As far as I know, you can swap the axels. 12 bolts were available to 82.
__________________
Gerardo a.k.a. Mad Chemist
Silverado XST videos
gchemist is offline   Reply With Quote
Old 04-05-2009, 01:03 AM   #5
sailed2japan
Jonny
 
sailed2japan's Avatar
 
Join Date: Apr 2008
Location: Outside the Box, Austin,TX
Posts: 741
Re: 6 lug to 5 lug rear

Ok, here's what I've heard. Swapping 5 lug axles into a 6 lug axle won't work, I think because of the length of the axle, but this is messing with a 60-72 12 bolt. The 73+ may be different. However I've been told that you can swap the carriers around.

Now, what I would do is grab a complete 5 lug axle and figure out which parts to mix and match.
__________________
1966 C30, Cummins, stacks, and a flat bed in progress...
"Honor.....simply put,
A veteran - whether active duty, retired, national guard or reserve is someone who, at one time in his life, wrote a blank check made payable to 'The United States of America', for an amount of 'up to and including his life.' That is Honor, and there are way too many people in this country who no longer understand it."
-AEC Hundley USNR
sailed2japan is offline   Reply With Quote
Old 04-05-2009, 04:17 AM   #6
gchemist
BAD BOW-Silverado XST
 
gchemist's Avatar
 
Join Date: May 2000
Location: Senior Member from Austin, TX
Posts: 6,431
Re: 6 lug to 5 lug rear

Any 8.5" 10 bolt or 12 bolt have interchangeble axels. Including the back plates for the brakes. The pinion and ring won't interchange. Same for a posi or gov-lock.
__________________
Gerardo a.k.a. Mad Chemist
Silverado XST videos
gchemist is offline   Reply With Quote
Old 04-05-2009, 04:22 AM   #7
gchemist
BAD BOW-Silverado XST
 
gchemist's Avatar
 
Join Date: May 2000
Location: Senior Member from Austin, TX
Posts: 6,431
Re: 6 lug to 5 lug rear

The axel shaft interchangebility is for any 10 or 12 bolt after '70. Older models won't interchange like sailed2japan states.
__________________
Gerardo a.k.a. Mad Chemist
Silverado XST videos
gchemist is offline   Reply With Quote
Old 04-05-2009, 08:34 AM   #8
larrystone
Registered User
 
larrystone's Avatar
 
Join Date: Jan 2008
Location: White Haven PA
Posts: 59
Re: 6 lug to 5 lug rear

Is it possible to just change the front brake rotors to six lug using the existing brake caliper?

I see sets of OEM six lug 16" GM alum wheels on CL going cheap.
__________________
1992 C1500 WT LWB 4.3TBI 700r4 4.10 limited slip= Work Truck
1986 C10 Custom Deluxe LWB 4.3-4V TH350C 2.73 ac cruise tilt= Cowboy Cadillac
larrystone is offline   Reply With Quote
Old 04-05-2009, 12:44 PM   #9
sailed2japan
Jonny
 
sailed2japan's Avatar
 
Join Date: Apr 2008
Location: Outside the Box, Austin,TX
Posts: 741
Re: 6 lug to 5 lug rear

I was reading on the 67-72 board that someone makes a specialty rotor that works with the hevy duty 1/2 brakes to convert to 6 lug. It only works if you have the 1.25" rotors, though.
__________________
1966 C30, Cummins, stacks, and a flat bed in progress...
"Honor.....simply put,
A veteran - whether active duty, retired, national guard or reserve is someone who, at one time in his life, wrote a blank check made payable to 'The United States of America', for an amount of 'up to and including his life.' That is Honor, and there are way too many people in this country who no longer understand it."
-AEC Hundley USNR
sailed2japan is offline   Reply With Quote
Old 04-05-2009, 11:15 PM   #10
THE UGLY
Registered User
 
THE UGLY's Avatar
 
Join Date: Apr 2009
Location: Fort Collins Colorado
Posts: 69
Re: 6 lug to 5 lug rear

be carefull there is a truck 12 bolt and a car 12 bolt and they are different.
THE UGLY is offline   Reply With Quote
Old 04-06-2009, 09:25 AM   #11
sailed2japan
Jonny
 
sailed2japan's Avatar
 
Join Date: Apr 2008
Location: Outside the Box, Austin,TX
Posts: 741
Re: 6 lug to 5 lug rear

Yes, definately, but I haven't figured out which one is in an El Camino....j/k
__________________
1966 C30, Cummins, stacks, and a flat bed in progress...
"Honor.....simply put,
A veteran - whether active duty, retired, national guard or reserve is someone who, at one time in his life, wrote a blank check made payable to 'The United States of America', for an amount of 'up to and including his life.' That is Honor, and there are way too many people in this country who no longer understand it."
-AEC Hundley USNR
sailed2japan 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 07:21 PM.


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