Too much gear?

['73Dusta]

I've purchased this rearend for my prostreet build.  It's a 8 3/4 sure grip with 4.30 gears. The rearend is being installed into a 73 Duster that will not be a daily driver, will be street legal and see some freeway driving to get to the track(approx. 40 miles). The motor that will be going in is a 383 30 over, 440 source 496 stroker kit, 906 heads hopefully 440 source heads. Still figuring out the cam,manifold, and carb. Trans is a 727.  Since the rearend is not installed I plan on moving it back an inch for taller tires.  I have a couple of questions.  First, are gears too tall?  What torque converter would be best? Approx. what size tires can I run.  I plan on doing a mini-tub like shown in tech page.  Any help would be appreciated!

Thanks,
Gene

g]

[Capt Jack]

to me, 40 miles is a long drive on 4.30's (had em on my GTX).

just my two bits

[flyboy01]

with a 4.30 and 28" tires, figure about 3600 rpm at 70 mph. At 6000 rpm, you will be at 116mph.

['73Dusta]

Fly, those numbers don't seem too bad. I just have to make the trip a cruise not a rocket?

Thank you!
Gene

[flyboy01]

Not as bad as I thought it would be either, but definately not a long distance cruiser. Maybe with a Gear-vendors OD unit.

['73Dusta]

    I appreciate the response!

[NYrr496]

What are you putting this engine in? 496 makes a lot of torque, requiring less gear multiplication. I briefly had 430's in my Charger and they drove me insane. What does your car weigh?

[mopowers]

If you've already got the gear, I'd use it.  Since you're moving the rear back an inch 30 inch tall tires will fit.  I'd go with 315/60/15 MT drag radials.  At 65 mph with 30" tires and 4.30s, you should be around 3100 rpm.