need some help with gears

[96SN8K]

I have a 96 cobra that im installing a procharger on monday. I wanted to gear the rear end but dont know what to go with. Need a little help here.

thanks guys

 

[Wynn]

3.73s since you're going blown.

 

[mustangsf4life]

Cobra 31 spline diff or diff of your choice + 31 spline axles. Id say 3.73's or 4.10's with the blower imo. Others can chime in on gear specs with a centri blower.

 

[96SN8K]

how would 3.73s or 4.10s do on the highway like at 80-85mph? Im trying to keep my rpm under 3,000

 

[Wynn]

If you're worried about highway, I'd probably go 3.73s. They would be ideal for highway cruising, but it's really not a big enough increase to justify the money. Honestly, I would say either go 4.10s or nothing, but like MUSTANGSF4LIFE said, somebody else will chime in I'm sure.

 

[Roll Race Rob]

i think 410 is too much gear for anything over 400 horse really, respecially if your more concerned with freeway than track, go with 373s

 

[gq916]

3.73

 

[96SN8K]

I want to take it to the track and lil fun on the street too.

 

[Mark185]

another for 3.73.. i noticed a good difference from 3.27. 4.10's with a blower seems extreme

 

[Bmeagher]

Here's the best calc you can get!
MFactory Competition Products - Forged Transmission Components

 

[19Mystic96]

id say 3.73s.. i had them in my NA cobra, and i was around 2200rpms at 70... 4.10s are a bit too low for a SC car

 

[Cookieman00x]

3.55's are perfect to keep you in boost.

Not too short of a first gear, and a nice long 3rd gear. I loved mine.