What gears would work well for a 68 289? I've heard a lot about 3.73 would they work well for my car? Would there be any down sides?

 

You need to take into consideration what you use your car for and more importantly, your engine set up. You don't want too much gear for a low reving engine. Keep in mind, more gear = less MPG. I run 3.89's in my 69 coupe that's just used for play. That said, my 390 is a relatively low reving motor that makes a bunch of torque. I'm thinking about going down to 3.25's which will still let me keep the fun factor.

 

My 65 has 3:00's and I love'm. Low end bites the big one and no burn outs, but on the freeway, its killer. Excellent high end and with a slightly modified motor, I get around 24MPG.
[sm=smiley20.gif]