| |
Click on image for the lowdown. 
====
| | |
4 members (Phak1, Otto Skorzeny, 2 invisible),
212
guests, and
2
robots. | | Key: Admin,
Global Mod,
Mod | | | Forums66 Topics128,080 Posts1,056,063 Members48,433 | | 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: Mar 2015 Posts: 34 Wrench Fetcher | | Wrench Fetcher Joined: Mar 2015 Posts: 34 | First, I am new to cars or trucks of this vintage. I have been restoring Corvettes for many years. Recently I purchased a 1941 1/2 ton pickup. The truck runs and drives and is in great shape with no rust to speak of.
When buying this project, I did not give any thought to the drivability of this truck on highways we have here in New Jersey.
I am in need of advice as to how I can change the rear differential to a ratio higher than the 4:11 that I think is in the truck at this time.
I would like to keep the remainder of the original drive train.
Thanks for any and all help.
Ed | | | | | Joined: Aug 2004 Posts: 1,418 ODSS Lawman | | ODSS Lawman Joined: Aug 2004 Posts: 1,418 | Welcome to Stovebolt Ed!
The 4:11 ratio was the smallest that came on your vintage truck. There are a few options. Keeping the enclosed driveline will prevent having to change the transmission. I do not think the 3:55 gearset will fit in your rear axle. That being said, I have installed a third member out of an AD truck in your vintage. If you can do that, then you can get the 3:55 gears and be on your way.
Your truck will do highway speeds now once everything is in good working order. However the noise may be intimidating!!!
SWEET Sergeant At Arms: Old Dominion Stovebolt Society BUNS?!?!?!Where we're going, we don't need no buns.....1950 GMC 450 1951 Chevy 1/2-TonThe GreenMachineIn the Stovebolt Gallery | | | | | Joined: Mar 2015 Posts: 34 Wrench Fetcher | | Wrench Fetcher Joined: Mar 2015 Posts: 34 | Thank you for the response. Now let me show my true ignorance of this subject. What does AD stand for? | | | | | Joined: Aug 2004 Posts: 1,418 ODSS Lawman | | ODSS Lawman Joined: Aug 2004 Posts: 1,418 | AD = Advanced Design Series
1947.2-1955.1
SWEET Sergeant At Arms: Old Dominion Stovebolt Society BUNS?!?!?!Where we're going, we don't need no buns.....1950 GMC 450 1951 Chevy 1/2-TonThe GreenMachineIn the Stovebolt Gallery | | | | | Joined: Jun 2004 Posts: 8,597 Riding in the Passing Lane | | Riding in the Passing Lane Joined: Jun 2004 Posts: 8,597 | The way I understand, you can use the 3rd member from a 50-54 pass car with powerglide. It has the 3:55 gears in it.
They say money can't buy happiness. It can buy old Chevy trucks though. Same thing. 1972 Chevy c10 Cheyenne SuperIn the Gallery Forum | | | | | Joined: Mar 2015 Posts: 34 Wrench Fetcher | | Wrench Fetcher Joined: Mar 2015 Posts: 34 | Thank you for the information. I shall start my search.
Ed | | | | | Joined: Aug 2005 Posts: 277 'Bolter | | 'Bolter Joined: Aug 2005 Posts: 277 | I kind of remember things a bit different. If you are looking for a 50-54 car differential, I believe you will need to replace the entire differential, the pumpkin will not fit the truck differential.
3:55 after market gears are available and will fit 41 1/2 ton differentials. They are available from vendors such as 'Patricks'. | | | | | Joined: Mar 2015 Posts: 34 Wrench Fetcher | | Wrench Fetcher Joined: Mar 2015 Posts: 34 | Thank you so much. I placed a call to Patricks but didn't get to talk to anyone. I will try again later. | | | | | Joined: Mar 2015 Posts: 34 Wrench Fetcher | | Wrench Fetcher Joined: Mar 2015 Posts: 34 | I just spoke to the gentleman at Patricks who has indicated that a ring and pinion is available for the 1941 half ton truck and can be installed in the current set up.
Thanks to all for the help.
Ed | | |
|
|
| |
