|
01-02-2007, 08:34 PM
|
#1 |
|
Registered User
Join Date: Dec 2006
Location: New Mexico
Posts: 88
|
How Common?
Alright guys I happened to look at my 72 today and it has a 12 bolt rear end. How common were these in 1/2 ton trucks? Were most of them 10 bolts or Dana 44s? Or were they pretty common? Thanks, Justin
|
|
|
|
01-02-2007, 08:35 PM
|
#2 |
|
Registered User
Join Date: Mar 2006
Location: USA
Posts: 21,020
|
Re: How Common?
My 71 C/10 I use to own had a 12 bolt.
My swb K10 has a 12 bolts My 69 K10 has 12 bolts and my totaled 69 c/10 has a 12 bolt Last edited by 1969k10stepside; 01-02-2007 at 08:47 PM. |
|
|
|
|
01-02-2007, 08:39 PM
|
#3 |
|
Registered User
Join Date: Apr 2006
Location: MinneSNOWta
Posts: 1,381
|
Re: How Common?
I'm pretty sure the standard rear is a 12 bolt.
Every chevy truck i've owned (86 and older) had a 12 bolt, and all my camaros had 10 bolts.
__________________
2003 GMC Sierra 1500 WT 1995 Nissan Hardbody 2016 Hyundai Veloster Turbo DC2 (SW/AW) Clyde W. Harvey USN "Socialism is a philosophy of failure, the creed of ignorance, and the gospel of envy, its inherent virtue is the equal sharing of misery" Winston Churchill |
|
|
|
|
01-02-2007, 08:40 PM
|
#4 |
|
Can't ReMember
Join Date: Dec 2006
Location: Orlando area
Posts: 258
|
Re: How Common?
My 71 C-10 LWB = 12 bolt
__________________
Adversity doesn't test your character; it reveals it. 71 C-10 LWB 350/TH350. I purchased it in 1978 for $1400. I'm currently abusing it daily. (when it's running  )
|
|
|
|
|
01-02-2007, 08:42 PM
|
#5 |
|
Registered User
Join Date: Jul 2006
Location: Central PA
Posts: 12,201
|
Re: How Common?
my 68 K-10 = 12 bolt w/ 3.73's
|
|
|
|
|
01-02-2007, 08:44 PM
|
#6 |
|
Registered User
Join Date: Dec 2006
Location: New Mexico
Posts: 88
|
Re: How Common?
Ok so the 44 would be rare? Also, I've asked this before, but what gears would it have, with an original 3 on the tree? I thought it might be a 10 bolt, maybe a 44 before, so would that change gear possibilities or should it have 3.07s? Thanks again, Justin
|
|
|
|
|
01-02-2007, 08:46 PM
|
#7 |
|
Senior Member
Join Date: Jan 2005
Location: Raleigh, NC
Posts: 894
|
Re: How Common?
Don't know on the pickups but the Blazers got 3.73s standard with the 3-speed. Autos got the 3.07s.
__________________
-Chris Building a stripper, one part at a time: 1969 K5, 307, 3spd, 3 seats, hard top. Added Pwr Discs, Pwr Steering, Aux Battery, T-case Skid, Lighted Sidemarkers, HEI, Lock-Right Diff, ECE Class IV Hitch, 32" MT/Rs. Parts to Install: Hand Throttle, Console, Tow Hooks, Dual Horns, AM-FM, Dealer Swing-Away Tire Carrier, Gas Tank Skid. Also building a 1950 Willys CJ-3A and off-roading a 2001 Nissan Frontier on 1-Ton Portals... |
|
|
|
|
01-02-2007, 08:52 PM
|
#8 |
|
Registered User
Join Date: Dec 2006
Location: New Mexico
Posts: 88
|
Re: How Common?
Oh, I see said the blind man. I thought the Dana was a 10, not sure why, oh well. It was a 350 with a three on the tree.
|
|
|
|
|
01-02-2007, 08:57 PM
|
#9 |
|
Registered User
Join Date: Dec 2006
Location: New Mexico
Posts: 88
|
Re: How Common?
Alright, the DANA is a 10 bolt I just looked it up on LMC. I guess that's why I thought it was a 10 bolt, cause it is.
|
|
|
|
|
01-02-2007, 09:07 PM
|
#10 |
|
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
|
Re: How Common?
the dana is not refered to as a 10 bolt though... that is just how LMC describes things. A 10 bolt is a GM rear.
Don't take LMC's word as gosple, it'll bite you in the 12 bolt. Most of the 1/2 ton trucks got the GM 12 bolt rear. In the 2 wheel drive side of the house, I've never seen anything other than 12 bolt rears. |
|
|
|
|
01-02-2007, 09:12 PM
|
#11 |
|
Registered User
Join Date: Dec 2006
Location: New Mexico
Posts: 88
|
Re: How Common?
Cool, thanks for your help Longhorn Man. You helped me last time too. I'm still getting all this stuff down, lol. Thanks to all yous guys, Justin
|
|
|
|
|
01-02-2007, 09:14 PM
|
#12 |
|
Registered User
Join Date: Dec 2006
Location: Louisville, KY
Posts: 39
|
Re: How Common?
I'm not sure what the rule is about this, but I have a 68 short step that my father in law bought new and it has a dana, althought my 68 shart fleet has a twelve bolt.
|
|
|
|
|
01-02-2007, 09:15 PM
|
#13 |
|
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
|
Re: How Common?
cheby, does that truck have a big block in it by chance?
|
|
|
|
|
01-02-2007, 09:17 PM
|
#14 |
|
Registered User
Join Date: Dec 2006
Location: Louisville, KY
Posts: 39
|
Re: How Common?
let me revise this, the 68 step is a GMC with leaves if that makes a difference.
|
|
|
|
|
01-03-2007, 02:16 AM
|
#15 |
|
Registered User
 
Join Date: Jul 2006
Location: Pittsburgh, PA
Posts: 204
|
Re: How Common?
As far as I know, the only rear ends used in these trucks were a 12-bolt or a Eaton correct? The GM Corporate 10-bolt (8.5" ring gear) didn't come on boeard till the early 80's. And I dont thing GM ever used a D44 in the rear of any of these trucks...In the front, yes, but not in the rear...But yes, a GM 10bolt and a D44 both have 10 cover bolts...I think Dana 60 has to cover bolts too...
__________________
Project Family Values Build Thread Vehicles/Projects: -1971 C10 SWB Fleetside! Gathering parts now, will begin frame-off resto soon... Pleasure in the job puts perfection in the work. -Aristotle |
|
|
|
|
01-03-2007, 04:37 AM
|
#16 |
|
Senior Member
Join Date: Aug 2005
Location: Los Angeles
Posts: 1,327
|
Re: How Common?
Wait a minute, fellas. GMC pickups in '67 and '68 are quite a bit different than Chevys. The standard rear axle in the 1/2 tons was the Dana 44, with a non-floating 6 stud Dana 60 as a heavy duty option. 3/4 tons used the full floating 8 stud Dana 60. GMC Suburbans and Panels used the corporate GM axles like the Chevys, but not the pickups.
__________________
1967 GMC CM-2500 Camper Cruiser, 351E V-6, NP 435 4 speed, Dana 60, and factory A/C. 2012 GMC K-3500 WT regular cab, 6.0L Vortec, 6L90. |
|
|
|
 |
| Bookmarks |
| Thread Tools | |
| Display Modes | |
|
|
Linear Mode
