Rear axle ratio opinion

Billbo said

Thanks guys. I was just considering the stall of 3000 and the rear axle ratio whether the converter would be slipping too much at low speeds. No I do not race the car. I use it on the street and for cruising. I addressed this years ago and decided 3.23. But now I have the hi stall does it need the the lower gear? Also what do you mean 3.23 :1 is the optimal performance ratio?

Regards
Billy D.

Click to expand...

If you look in the catalog, or old Mopar brochures, they themselves call the 3:23 their "maximum performance" ratio! I went from a 3:23 to a 3:91 in my GTX hoping to dip into the 13's in stock trim, didn't pick up not even a couple 1000ths! Still at 14:06!!

Most times, when changing things like torque converters, rear ends and such, one component change does little or no good unless more components are changed to compensate for the increased performance capabilities of the change! That's how the snowball gets rolling! I recently had to rebuild my trans, and had a new 2800 converter sitting around so I threw it in! WOW, what a difference! However,'I think my rear ratio change is now benefitting from the converter change, where no change was detected before!! Take that for what it's worth, but I can see where changes should be made with other changes in mind!! If you have the 3:55 and can just swap out the centers real quick and try it out, worth the change! If you have to spend $100's to buy the parts and have them changed, maybe not worth it!!