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| | | Forums66 Topics128,047 Posts1,055,622 Members48,426 | | 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!
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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 2018 Posts: 139 'Bolter | | 'Bolter Joined: Mar 2018 Posts: 139 | I have a 1951 3100 short bed with a sm420. It has a 1955 10 bolt chevy truck rear axle with a 3:90 gearing. I was wondering if a 1957 10 bolt , 6 x 5.5” truck axle ( with a 3:55) would work for a bolt-in swap. Ideas on pros and cons? | | | | | Joined: Mar 2018 Posts: 139 'Bolter | | 'Bolter Joined: Mar 2018 Posts: 139 | I’m looking at a 1957 chevy truck rear axle that the guy says has 3:55 gears. Seems questionable. Weren’t 3:55’s only found in cars? His pics show 6 lug however. | | | | | Joined: Sep 2011 Posts: 1,453 'Bolter | | 'Bolter Joined: Sep 2011 Posts: 1,453 | think 3.90 was the highest ratio offered.
Got any pictures?
BC
1960 Chevy C10 driver 261 T5 4.10 dana 44 power loc
1949 GMC 250 project in waiting
1960 C60 pasture art
Retired GM dealer tech. 1980 - 2022
| | | | | Joined: Mar 2018 Posts: 139 'Bolter | | 'Bolter Joined: Mar 2018 Posts: 139 | | | | | | Joined: Mar 2018 Posts: 139 'Bolter | | 'Bolter Joined: Mar 2018 Posts: 139 | BC59 I have pics if you pm me, I can send them | | | | | Joined: Jan 2001 Posts: 5,337 'Bolter | | 'Bolter Joined: Jan 2001 Posts: 5,337 | Spicer 44’s were used in some trucks, mainly GMC, and I think they came with 3.55 option.
See the USA in your vintage Chevrolet! My Blog | | | | | Joined: Mar 2018 Posts: 139 'Bolter | | 'Bolter Joined: Mar 2018 Posts: 139 | The guy called me back. Yes his 57 rear end has 3:90 gears, same as my 55 rear end. Oh well the search goes on. | | |
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