| |
Click on image for the lowdown. 
====
| | | Forums66 Topics128,156 Posts1,056,870 Members48,456 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
| | THANKS!
For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | 
#48325 07/27/2006 3:19 AM | Joined: Aug 2001 Posts: 79 'Bolter | | 'Bolter Joined: Aug 2001 Posts: 79 | I was curious as to what type axle was in the back of my 68 Chevy 3/4 ton truck. It doesn't look like a 12 or 14 bolt.. Could it be a dana 60 or something? What was installed from the factory and what gears would be in it. It came with a V8 and 4 speed with granny low. Thanks for the help.
~Joe | | |
#48326 07/27/2006 4:50 AM | Joined: Oct 2003 Posts: 5,152 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Oct 2003 Posts: 5,152 | The center section looks big and round from the rear? Its probably the same rear used in 3/4- and 1-ton GM trucks since the AD trucks.
Can you post a picture?
The later year rears have better gears than the early ones, but with a 4-speed it is not likely the most desirable ratio usually only found on automatic equipped trucks.
1955 1st GMC Suburban | 1954 GMC 250 trailer puller project | 1954 GMC 250 Hydra-Matic | 1954 Chevy 3100 . 1947 Chevy COE | and more...
It's true. I really don't do anything but browse the Internet looking for trouble... | | |
#48327 07/27/2006 11:03 PM | Joined: Jun 2004 Posts: 8,597 Riding in the Passing Lane | | Riding in the Passing Lane Joined: Jun 2004 Posts: 8,597 | It,s GM own make. It has a drop out center section & a rear cover. It probably is 4:11 ratio. It could be 4:55. There were some 390s but I understand they are pretty rare.
They say money can't buy happiness. It can buy old Chevy trucks though. Same thing. 1972 Chevy c10 Cheyenne SuperIn the Gallery Forum | | |
#48328 07/27/2006 11:41 PM | Joined: May 2006 Posts: 8,351 'Bolter | | 'Bolter Joined: May 2006 Posts: 8,351 | Most likely it's an Eaton, though there some that had either Spicer 60/70 differentials. So far I've only seen them in Camper Specials in Chevies. They were standard in GMC.
Bill Burmeister
| | |
#48329 07/28/2006 4:04 AM | Joined: Nov 2002 Posts: 1,002 Shop Shark | | Shop Shark Joined: Nov 2002 Posts: 1,002 | The rear axle that was in my 68 C20 with 327 and a SM465 was a Dana 44 with 4:56 ratio. I replaced it with a Dana 60 out of a 73 with a BB and an auto that had 3:73 gears. Here's a rear axle identificaion site. http://coloradok5.com/axleguide.shtml Larry
I don't own a vehicle that isn't old enough to drink.
| | |
|
|
| |
