: 94 Silverado Axle Ratio

05-12-09, 11:24 AM
Lately I've been wondering the axle ration on my truck. Its a 94 C (That's the 2wd truck) with the Silverado trim and 350 (5.7). Does anyone know what it would be or how I could tell?

05-12-09, 02:01 PM
One way is by looking at the size of the tire. As ageneral rule (not set in stone) 265's had a 373 or 410, 245's had the 342.....

05-12-09, 03:31 PM
I didn't think they got 265 until the Vortecs were put in? Anyhow I've got 235, but I thought it may be a 3.73 or 4.10 because its the work truck so its made for towing and hauling. Its amazing how a single cab long box is still longer than almost every other vehicle out there.

05-13-09, 07:16 PM
If it's the plastic interior work truck with a short bed I'd wager it's 3.73. IIRC you had to special order 4.11, but stand to be corrected. My old man would order 3-4 new work trucks every year back in those days and they were long bed, 2wd, 4.11 gears. Those things could really smoke the rear tires. :)

05-13-09, 08:15 PM
1500, 2500 or 3500? Manual or auto? I have the '92 Chevy Trucks brochure in front of me with the info.

05-13-09, 10:29 PM
Auto, 1500, Long box, single cab, 350, weren't they all plastic interior? Yeah, he used to carry a lot of wood and stuff and always had extra leaves put in so he could haul more.

05-14-09, 12:00 AM

Check your RPO codes, they should be on the drivers side door or in the glovebox. Fullsizechevy.com is an awesome site for the 88-98 GM trucks.

05-14-09, 09:21 AM
Awesome, thanks.

05-15-09, 10:58 AM
Well, if I read it right I have the 3.42.....but I'm really surprised about that one.