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#458743 10/06/2008 12:34 AM
Joined: May 2008
Posts: 1
R
New Guy
New Guy
R Offline
Joined: May 2008
Posts: 1
Any places I can find new gears for the rear end. I have the housing and axles but none of the third member

Joined: Oct 2006
Posts: 9,671
D
'Bolter
'Bolter
D Offline
Joined: Oct 2006
Posts: 9,671
There are tons of them around 4.57 and 5.14 three quarter and wontoners are the same. Just put an ad in the Parts Wanted forum, you'll probably even be able to find one close to home.
Denny Graham
Sandwich, IL


Denny G
Sandwich, IL
Joined: Jun 2008
Posts: 47
D
Wrench Fetcher
Wrench Fetcher
D Offline
Joined: Jun 2008
Posts: 47
If your rearend is the original Eaton HO52 or HO72, a third member from a 1967 thru '72 Chevy/GMC C20 3/4-Ton truck will plug right in with no modifications. I installed a complete third member with 4.10 gears and the "No Slip" option in my '49 Chevy 3/4-Ton. Check out www.67-72chevytrucks.com.

Joined: Oct 2006
Posts: 9,671
D
'Bolter
'Bolter
D Offline
Joined: Oct 2006
Posts: 9,671
I did the same thing this summer, the only provlem with that is finding a decent 4.10. I looked for nearly two years till I finally found one 300 miles away. The ones that I mentioned are like I said, pretty common.
Denny Graham
Sandwich, IL


Denny G
Sandwich, IL
Joined: Oct 2018
Posts: 30
Y
Olddog
Olddog
Y Offline
Joined: Oct 2018
Posts: 30
Help, I own a 1948 GMC, trouble is don't know if it is a 1/2 ton or 3/4 ton. Any glues how to figure it out.
I thank you for any and all help.

Joined: Oct 2018
Posts: 30
Y
Olddog
Olddog
Y Offline
Joined: Oct 2018
Posts: 30
Hello, I am originally from Belvidere, Il. Retired South.
Your name sure sounds familiar. I am 66 yrs. Old and my ame is Mike Follis.
You ever run around Belvidere area?

Joined: May 2005
Posts: 8,878
G
.
.
G Offline
Joined: May 2005
Posts: 8,878
I believe you'e responding to a 10 year old thread.

We now have a tech tip on swapping gears for the 3/4 and 1 ton trucks.
https://www.stovebolt.com/techtips/axles/1%20Ton%20Upgrade/

1/2 ton will have (originally had) 6 lug axles and an enclosed driveshaft.
3/4 ton has 8 lugs and open driveshaft, at least at the differential.


•1951 GMC 250 in the Project Journals
•1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
•1952 Chevrolet 3800 pickup
---All pictures---
"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-

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