The Stovebolt Site Forums The Shop Area Driveline help picking the right s10 T5 transmission

So I been thinking about getting a s10 t5 for my 54 3100. I have a 61 261 engine and a 55 2nd series rear end with 3:38 gears . I'm not sure what year transmission would work the best with my rear end gear ratio . i do want one with the mechanical speedo . i plan on running 500/525-16 FIRESTONE tires

I forgot where exactly where I got this from but I did save it on my computer. Here is what I am installing in mine 1956 3100 1352-145(trans #) 1985,1986(Year) S10(truck) 2.5 L4,2.8 V6(engine) 3.76(1st) 2.18(2nd) 1.42(3rd) 1.00(4th) 0.72(5th)


The T5 is available in many different variations. Various manufactures have used the T5 in their vehicles, but the ones we are most interested in were used by GM and have the standard GM bell housing bolt pattern. The best candidates for most Advance Design trucks are those used in the 1983 to 1987 Chevrolet S-10 pickups. These earlier models are readily available, have a manual speedometer cable connection, and can be bolted right up to your Chevy Inline Six with few modifications.

The V6 S10 transmissions seem to be the best option for most swaps. They are built a bit heavier than their 4-cylinder counterparts, and the 0.72 or 0.73 overdrive ratio is strongly preferred over 0.86 ratios found on most 4-cylinder applications.

With 3.38 final drive you may want to consider one with 4.03 1st gear if you: have tall tires, need to get started on steep streets or go on back county road that are steep / rough or require low speed travel. If not 3.76 1st is a good choise.
I've got the lower 1st in my '60 with 3.56 spicer rear axle. You don't use 1st that long on the street but it has saved the clutch and my nerves great stress.

i plan on running one of these tires firestone tires
firestone tires 2