Rear End Gears

Bad Sport said
If you got it, I'd run it.

That’s the plan- run what I have on hand as I’m retired and extra car funds are slim at best.

MileHighDart said
Your A500 actually has a .69 overdrive not .79

Thanks! I wasn’t sure what the OD ratio was in the A500. Couldn’t find the info in My 93 FSM.

“MileHighDart said
I just recently did the A500 swap. I,m running 3:23 gears and 225/60/15 rear tires, which are around 25-1/2" tall. But I am running a 5.9 magnum.
With this setup the overdrive is great. 60 mph is barely 2000rpm. 75mph is like 2500

Since I’ve got to use what I have, wheels are 14 inch Magnum 500. So tires are likely to be no larger than 205 or 215 70 or 60 14’s.. In my 93 Dakota, tires are stock size 15 inches, rear end gears are 3.55. At 70 MPH in OD and LU RPM is but 2200. Takeoff is decent considering the motor is a 3.9

“MileHighDart said
I'd think that running a 273, you might want to go ahead with the 3:55's, since you already have them, might get you off the line a little quicker.

Thanks for your comments!

RustyRatRod said
I'd run a 3.91 so quick it'd make your head spin. Your final drive ratio will still be 3.08.

Using what I have, it’s either 3.23s or 3.55s unless someone wants to trade me 3.91 WITH Sure Grip for my 3.23s WITH Sure Grip.