l can't figure it out, I've got a 1990 IROC Z TPI 305, TH700R4 4 spd, 15 in wheels, a few mods, l'm pretty sure l've got a stock 2.73 right now someone correct me if lm wrong. l want to order a 3.73 from jegs, but l dunno which one l need: 7.5 inch 10 bolt 3.73 41-11 teeth, for 3.08 and numerically LOWER carrier, or is it the 3.73 41-11 teeth for 3.23 ratio and numerically HIGHER carrier. also with this mod will l experience traction problems under a 150 shot of juice? anyone know approximately how much it might cost to have it professionally installed?

thanks a lot in advance

 

If you have 2.73's you need the "3.08 and lower gears" since 2.73 is less than 3.08. You will have traction problem without the bottle.


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82 camaro--original steering wheel, brake/gas pedals, seats--everything else modified
82camaro