4.11 to 3.54 gears

Am changing from 4.11's to 3.54's on a 32 axle. Anyone done the same ? Better top end speed ?

 

Therotically, yes.........but it's not that simple. Depends on available engine power mostly, vehicle wind resistance, rear wheel/tire diameter and probably a few other factors. What it will do however, as you no doubt know, is reduce engine rpm at normal cruising speeds.

 

Thanks, I'll see how it goes.

 

Why the change in ratio? Just curious?

Buckle

 

I did in my 442 , lot more drivable on street and hwy. I've gots plenty of power on reserve though so I cannot say if yours will still be enjoyable to drive around town .

 

Runs out of steam at 60!

 

I've got a set I bought to upgrade my 32 V8 axle. The car is the one in my ava. 322 Nailhead and Dynaflow with a torque tube. I have not had the time to get into it so I will be interested in seeing how it goes for you.

 

Oh, got ya.

Buckle

 

Once the axle is back in I'll put a post up.

 

I did the same , much better on the hiway. plus better gas mileage...

 

I changed my GTO from a stock 4:33 to 3:73's and wish I had gone to 3:23's instead. If you have a big torque monster consider lower number gears to get a good highway ride, lower your RPM's, and save not only your motor but a few bucks on fuel.

I do miss the 4:33's they were a LOT of fun.

Joe

 

I run 3.73's with a T-5 behind a 283 and have no complaints. I run about 2K RPM at 70 MPH.

 

Super. Please detail the steps to get the new pinion in correctly and also the new drive shaft (length change). Thanks.