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9 members (Jay R, 52Carl, 78buckshot, TooMany2count, walter74, Bill Hanlon, Barry Martak, Charles in CA, 1955 1 Series),
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Mod | | | Forums66 Topics128,089 Posts1,056,417 Members48,443 | | 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!
| | | | Joined: Apr 2016 Posts: 102 'Bolter | | 'Bolter Joined: Apr 2016 Posts: 102 | There are lots of posts in the drivetrain section, but in my 48 3/4 ton, I used a 4.11 axle out of a 2004 chevy 2500 HD. The parking brake cables work and look ok also. faster gears, disc brakes... The only draw back is the new axle is ~4-5 inches wider.
Jon | | | | | Joined: May 2005 Posts: 8,878 . | | . Joined: May 2005 Posts: 8,878 | I haven't finished it yet but I have a 14 bolt and I'am adapting rear disc from an 05 GM 3/4 ton, probably same as above. Same width as original. | | | | | Joined: Jun 2011 Posts: 5,096 Crusing in the Passing Lane | | Crusing in the Passing Lane Joined: Jun 2011 Posts: 5,096 | They come in vans and pickups, dually, all different widths, get out your tape measure to find what width fits your truck, then you know what truck to look for ratio in.
Ed
'37 GMC T-18 w/ DD 4-53T, RTO-610, 6231 aux., '95 GMC running gear, full disc brakes, power steering, 22.5 wheels and tires.
'47 GMC 1 ton w/ 302, NP-540, 4wd, full width Blazer front axle.
'54 GMC 630 w/ 503 gasser, 5 speed, ex fire truck, shortened WB 4', install 8' bed.
'55 GMC 370 w/270, 420 4 speed, grain, dump bed truck from ND. Works OK.
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