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Joined: Jan 2008
Posts: 360
B
'Bolter
'Bolter
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Joined: Jan 2008
Posts: 360
If you have done the 3:55 rear differential conversion, where did you buy yours from? Excluding Patrick's as they are not around anymore, recommend a vendor? Did you also purchase the installation/assembly kit i have seen some of the vendors offer? Other than the gearing and associated seals, bearings, ect. was there anything else you should have/would have/wound up having to purchase to make things easier or more complete of a process. I will be installing it in a 46 1/2 ton pu.

Thanks for your time and input

Ed


"it's only old if you can't find a use for it; otherwise it's cool and i'll use it."
Joined: Sep 2001
Posts: 29,269
Bubba - Curmudgeon
Bubba - Curmudgeon
Joined: Sep 2001
Posts: 29,269
Have searched this forum?

Mother.Trucker (a member here) sells the 3.55 R&P gears.

There have been many posts about doing the installation and buying an installation kit.
vendors that sell 3.55 installation kits

Chris Sweet's Tech Tip on the 3.55 R&P installation.

Joined: Aug 2018
Posts: 351
D
'Bolter
'Bolter
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Posts: 351
Ed, Looks like The Filling Station and Jim Carter's Truck are both in a back-order status. Chevs of the 40's has the 3.55:1 Ring Pinion Set, a bit less than the other two vendor's regular prices. I've not used this ring/pinion set from Chevs, but other parts I've sourced through Chev's have been fine, FWIW.

Doug


1947 2nd-Series GMC FC152 3/4-ton
Follow the story in the DITY

1953 Chevy Bel Air Sport Coupe Powerglide
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Bubba - Curmudgeon
Bubba - Curmudgeon
Joined: Sep 2001
Posts: 29,269
If you are looking for the Ring & Pinion set, check with Mother.Trucker in a Private Message.

I think that I have only used the Classic Parts installation parts sets, but Chevs of the 40s should have a similar set?

What year is your 1/2 ton truck?

There is a 1930-1940 installation parts set and a 51-54 installation parts set.

Joined: Aug 2004
Posts: 1,418
ODSS Lawman
ODSS Lawman
Joined: Aug 2004
Posts: 1,418
Besides the parts you listed, you will need also:

BFH
Dial indicator with stand
torque wrench
pipe

You will need two types of pipe. Listed in my Tech Tip above is a pipe to drive the bearing onto the pinion shaft (1-1.5"?) and a longer one to drive out the okie bushing as shown in the tip.

The most important part of this project is attention to detail. Read the install instructions, and the TechTip ask questions.


SWEET
Sergeant At Arms: Old Dominion Stovebolt Society
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1950 GMC 450
1951 Chevy 1/2-Ton
The GreenMachine
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B
'Bolter
'Bolter
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TC it’s a 46 1/2 ton. Will be running a 261 and probably a year correct 4 speed trans.

Appreciate everyone’s time and input. Getting ready to read all the tech tips prior to purchase.


"it's only old if you can't find a use for it; otherwise it's cool and i'll use it."
Joined: Sep 2001
Posts: 29,269
Bubba - Curmudgeon
Bubba - Curmudgeon
Joined: Sep 2001
Posts: 29,269
Maybe SWEET or MT or another member will confirm that MT's (or other vendors') 3.55 gear set will work with your year?

I think an installation set for your year is listed in a post above?


Moderated by  Dusty53, SWEET 

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