Gear ratio swap update

[beaver50]

I have been asking alot of questions ab how to swap out rear end gears.I tore down that rear end in my 94 Z28.It had the 2 series carrie with a 4.11 ring & pinion.Iw as going to a 3.42.After I got it apart it had the spacer for the to put the 3 series ring on it.It pulls great but I lost all the bottom end but ive have more top end.I hope my gas mileage goes up.Thansk to everybody for all the help.

[95albinobird]

if it was a m6 i would have left the 411s in you may burn the same amount of fuel trying to get it to pull like you are accustomed to.

[Injuneer]

Glad to see you got the project completed.

It's simple math.... the 3.42's by themself make it feel like you lost almost 17% of the rear wheel torque from a stop, and you did. Plus it takes longer for the RPM to get up on the torque curve. Double hit.

[beaver50]

Its not a M6 its the A4.you can tell a big difference in it.Its still pretty quick and I can already tell a difference in gas mileage.At 75 mph its not tached out.I keep putting the gas to it.I like it so thats all that really counts I guess.