how good are 308 gears ? i know the popular ones are 3.55 or 3.73. I got a new set of 3.08 gears in a swap meet for $10 need info on theses numbers. need to know if they are good for 1/4 mile? if not i could use them for desk ornaments. thanx

 

For 1/4 mile times ur MUCH better off with 3.73's or 4.10's if ur n/a. If ur blown or juiced 3.55's are good. And the stock manual trannys come with 3.08's. So id just sell those for more money , then grab some 3.73's. They're great on the street and dont affect highway driving too much.

 

As 91LX said...I would go 4.10s at the track if you're a manual. Otherwise, I'd go 3.73s if auto. If you're blown/nitroused then taller gears may be too much for the track.

 

why you think you paid 10 bucks for them..................everyone has them and now so do you

 

thanks, right now the motor i have ill be using 100 shot n2o i have edelbrock aluminum heads, crane rockers, polished crank, pulleys headers etc. i think ill be getting the 3.55s cuz my next motor in working on will be either a 460 with turbo or a stroked 351w but im turbocharging this time. does any body know with the motor i have now how much more shot i could go with blowing **** up?

 

Forget power upgrades right now....get a sh*tload of suspension work done.

 

you will probly want 3.27's or 3.08's for a 460. Even if it's not that built they are torque monsters and like to rev low and PULL. I have a 425CI in my '78 caddy with stock 2.28's (posi). The motor is slightly cammed with flat tops and 4BBL, and it still breaks the tires loose when you stomp it at 30-40 kph. The motor makes it's power from 1500- 4000 RPM's.

 

sorry for the delay i couldnt find my post. well on the 87 gt i have running now eibach spring, sub connectors and steeda upper and lower control arms. any recomendations. looking at a tubular k member and A arms. for the big block project i need to do sme more reaserch on suspension upgrades.