Best gear for centri supercharger
 

First post here so be easy on me lol

I have a gpi ss4nfc cammed l99 with a yank PA series 3800. My plan will be to go with a centri supercharger within the next year or 2 give or take but i also wanted to change the rear end gear to either a 3.73 or a 3.91. Or will i do better with leaving the stock gears in

I plan on it being more of a "Mexico" street car that i can still drive 2 or 3 hours on thre highway and around town. Will see the track but not to much. Also most tracks in the area are 8th mile tracks with the exception of Memphis.

Given your mods you will likely do best with the 3.91.

We offer fully built differentials with all the upgrades on an exchange program

https://jannettyracing.com/products/...5-camaro-ss-v8

Any discounts coming up :-) PM me.

Right now Total coast on web is about $1825 (with 391)
391 $325
Gear Kit $295
caps $170
Posi-mod $200
I take it the extra $1000 is all labor? ( machining caps and install of everything) or is there something else in there that's cool?

2012 2SS/RS Vert Auto. Twin Turbos only @ 10Psi now. Cam and stall to match. Will not race it. All street and show and fun. Was thinking 3.91 would wake it up on the lower end when i have no boost and only about 500wrhp.

Sucks your so far from Florida. Install charge for Diff is great!

Yes our Black Friday sales event is just around the corner.

Labor includes, disassembly, cleaning, inspection, rebuilding, machining, set up etc.

I do recommend the Optional Eaton Tru track for your build.

The factory Spider gears are a weak point and will fail at your power level.