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Rear gear exchange? #1320735 Tue Aug 06 2019 07:25 PM
Joined: Jul 2019
Posts: 8
R
Rubidu8 Offline OP
New Guy
I just purchased a 1947 3800 panel and am curious about what the standard gear ratio is and if there are any aftermarket kits available to change this one out so I can drive it down the highway. This is my first post and there is probably a post that answers this question somewhere but I haven’t found it. Thanks for any directions here! David

Re: Rear gear exchange? [Re: Rubidu8] #1320833 Wed Aug 07 2019 04:27 AM
Joined: Jul 2007
Posts: 519
'
'54 3600 Offline
Shop Shark
David,

Welcome to stovebolt .

Standard gear ratio for the One Tons would be :

5:14 to 1 with 14 " Drums & 2 & 1/2 " brake shoes .

There are NO aftermarket rear axle kits available .

New parts for this old Eaton axle are scarce to find .

Brake drums are non existent .

Brake parts are hard to find .

Other bolter's will chime in with their ideas

on axle swaps .


George
'54 3600




Last edited by '54 3600; Wed Aug 07 2019 04:28 AM. Reason: add

1954 3600
Re: Rear gear exchange? [Re: Rubidu8] #1320904 Wed Aug 07 2019 06:47 PM
Joined: Jul 2019
Posts: 8
R
Rubidu8 Offline OP
New Guy
Thanks George. That’s what I was afraid of!

Re: Rear gear exchange? [Re: Rubidu8] #1321813 Wed Aug 14 2019 04:53 AM
Joined: Apr 2002
Posts: 1,539
F
Fox Offline
Shop Shark
Here is a good read for you. I did this swap. It’s great. It is simple to do and makes the truck drivable. The hard part is finding the donor... it took me a couple years of looking. Mind you I wasn’t looking really hard. The funny thing is I found the donor 4 miles from my house and got there while 1972 C20 truck for $500. I could likely sell it for $1500-2000!

https://www.stovebolt.com/techtips/axles/1%20Ton%20Upgrade/


In the Stovebolt Gallery
More pictures here

1951 GMC 9430 1 ton dually—-Shiny!

1970 Chevrolet C10 - Grandpa’s- My first truck.—in progress to shiny
1972 Chevrolet C20- rusted
1970 Chevrolet K20 Suburban—rusted.
1950 Chevrolet 1300- in progress to shiny.

Parts trucks-
1951 GMC 9300
1951-GMC 9430
1951- Chevrolet 1300

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