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 12-13-2007, 01:49 PM   #1
68GMCCustom
Truck and auto performance nut
 
68GMCCustom's Avatar
 
Join Date: Feb 2007
Location: McKinney,Texas
Posts: 3,848
Question 12 bolt help!

I'm trying to take apart a 12 bolt truck rear end (70's style). Unfortunately the PO evidently over tightened the bolt that secures the pin/shaft (that goes thru the spider gears). That pin you have to pull out so you can push in the axles and get to the c-clips. About 1" of the bolt comes out, leaving some remaining threads (I'm guessing) and the shaft end of it stuck inside the threaded hole. I'm not wanting to drill it out (if I can even get a drill up to it) unless there's just no other way.

So.....how do I get it apart, and the differential out of the housing?

Thanks!
__________________
Kurt -

'68 GMC short step - NIB '09 LY6 6.0L crate motor w/mods, NIB '12 crate 4L85e w/billet 3k stall Circle D, 3.73 posi 12 bolt, DynaTech f-swap headers, 3/4 drop, handling mods, etc. - my toy
'72 Chevy LWB C-10 Highlander - 350/350 ps/pb/tilt/ac - not original but close
'06 Chevy TrailBlazerSS - LS2/4L70e - little black hot rod SUV - my DD
'18 Kia Sorento - wife's econo-driver
'95 Chevy S10 - reg cab shortbed, LS, 4.3, auto...

my '68's powertrain and chassis build -links broken
A surprise phase - carb to efi -links broken
68GMCCustom is offline   Reply With Quote
Old 12-13-2007, 03:10 PM   #2
uncle
Senior Member
 
Join Date: Aug 2003
Location: Conyers,Ga.
Posts: 7,286
Re: 12 bolt help!

Gonna be tough without drilling. Try a left handed drill bit.
uncle is offline   Reply With Quote
Old 12-13-2007, 03:31 PM   #3
BCOWANWHEELS
Registered User
 
Join Date: Nov 2006
Location: KINGSPORT,TN.
Posts: 3,035
Re: 12 bolt help!

YEP LEFT HAND BIT IS YOUR ONLy ROUTE. maybe you can get lucky and use a magnet if theres no threads left on the pin... also if you do try to drill it you better use a transfer punch to locate the center right on ........
bob
__________________
I BELIEVE IN JOHN 3:16

Last edited by BCOWANWHEELS; 12-13-2007 at 03:32 PM.
BCOWANWHEELS 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 07:32 AM.


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