Gear recommendation
 

I have a 69 nova weighing 3100lbs with a 572 crate engine using a TH400 with a Dana 60 and a 4.10 gear. I have a 2 speed PG with a 1.80 gear set I want to try in the car. I was thinking of using a 4.56 gear but was wondering if anyone could give me any recommendations for a gear ratio when switching from a 3 speed to a 2 speed? Thanks

Re: Gear recommendation
 

Almost 300 looks & nobody has not any info / data on this gear / trans swap ? wheres all the geniuses out there that mite have wondered the result changes

Re: Gear recommendation
 

Anyone with Prostock as their first name should have something for him. LOL!

Re: Gear recommendation
 

Which Stock or Super Stock class does that run? Might not find anybody here running anything like that. Ya think?

Re: Gear recommendation
 

I don't run a stock or super stock class. I just figured I would ask the question here thinking that lots of super stock guys may have tried changing from 3 speeds to 2 speeds or vice versa. Talking to some racers the most common answer I have heard is to go up a couple of gears ratios when changing to a 2 speed.

Re: Gear recommendation
 

I think I would just try what I had first then make the decision. You will then have your own data base of sorts and will not have cost you a dime...of course torque convertor selection rears it's head as well.

Re: Gear recommendation
 

Who is this guy??... so impatient! :eek:

Re: Gear recommendation
 

Maybe you should try posting this question on the correct form, such as Bracket, Top Stock or .90's tech section and take ProStock with you......................

Re: Gear recommendation
 

New to the forums here Bob and just thought that stock and super stock racers might have done more swaps. I will give the other sections a try. Thanks!

Re: Gear recommendation
 

With all that torque and a big tire I would think a 4:56 would work . I'm sure you don't want to wind her up to high in the traps.