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| | | Forums66 Topics128,043 Posts1,055,611 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: Apr 2014 Posts: 35 New Guy | | New Guy Joined: Apr 2014 Posts: 35 | I have a 1948 GMC 1.5 ton truck with a 2 speed rear axle. I was wondering if anyone knows of any faster gears to put in it and keep the original rear axle? thanks in advance | | | | | Joined: Feb 2004 Posts: 29,763 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,763 | The ratios available for the 2-speeds are "slow" and "really slow"! These old trucks were way underpowered, and super-low gears were the only way to get the loads moving that they were trying to carry. On the low side of the rear end, nothing above a fast walk was expected for the first 2 or 3 shifts and the top end usually came out around 50 MPH or so. Given the braking systems available and the roads they operated on back then, that was probably a good thing!
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
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