Click on image for the lowdown. 
====
| | |
3 members (RLB, papas52, 1 invisible),
91
guests, and
3
robots. | | Key: Admin,
Global Mod,
Mod | | | Forums66 Topics128,154 Posts1,056,851 Members48,456 | | 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: Aug 2022 Posts: 13 'Bolter | | 'Bolter Joined: Aug 2022 Posts: 13 | Nothing major, but started swapping out the ratty old tires for new ones. Running 8.25-20 on the rear and 7.50-20 on the front. Thought I was going to be slick and keep the fronts on while I mounted the new 7.50 on one of the rims from the back. Worked great, until I went to install it. I don’t know if this is common or what, but my center hole diameter is 4.75” on the rear and 5.25” on the front. 🤦ðŸ»â€â™‚ï¸
1954 Chevy 4400
2021 Mimaki JFX200-2513EX
| | | | | Joined: Mar 2004 Posts: 6,228 'Bolter | | 'Bolter Joined: Mar 2004 Posts: 6,228 | It's not normal to have two different size center holes.
What size is the front hub...4.75" or 5.25"?
What type a multi piece rims do you have...are the fronts and rears the same?
Mike B ) | | | | | Joined: Aug 2022 Posts: 13 'Bolter | | 'Bolter Joined: Aug 2022 Posts: 13 | Front hub is 5.25”, rear is 4.75”. It is a 3 piece Kelcey rim. The two that were on the front have the correct hub size and so do the 4 that were on the back. The truck is 68 years old, so who know what might have been replaced over the years. I thought for sure the fronts and rears would be the same.
1954 Chevy 4400
2021 Mimaki JFX200-2513EX
| | | | | Joined: Jun 2011 Posts: 5,096 Crusing in the Passing Lane | | Crusing in the Passing Lane Joined: Jun 2011 Posts: 5,096 | 5.25 hub diameter came on 55.2 trucks first, not know of earlier application. Perhaps someone added later parts, whole axle even? ‘54 could have been earlier application, perhaps rear was using up old parts, unusual though with two sizes on one truck.
Ed
Last edited by EdPruss; 12/11/2022 5:36 AM.
'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.
| | | | | Joined: Dec 2002 Posts: 2,549 'Bolter | | 'Bolter Joined: Dec 2002 Posts: 2,549 | Sounds like someone swapped out the original 1954 rear axle assembly, for an older 47-53 assembly. | | |
|
|
