im seriously contemplating new gears for the rearend but i dont know what to go with, i mean i want it to have a nasty gear in it like at least 410, or possably 456 but i dont know how much is too much, like probly top speed held for a while will probly be 65 at max, its not a dd, oh and i have 275/60r15 nitto drag radials, i think 373 now, but i realy want to wake this thing up but i dont want it to be so bad i cant drive it over 55/65 for 10/20 miles you know rpm's

 

If you have a 5-speed 3.73, and 4.10's for an auto. I have small a$$ tires on my car with 4:10's (235/60/14..), C4, and I can still drive 55-60 at 3250rpm, but I just mostly f around intown, and its a summer only car. Again 4.10's for auto, 3.73 for manual, geta good rebuild kit,and you should be set.

 

mess around with some gear calculators...

http://www.allfordmustangs.com/Detailed/636.shtml

http://www.allfordmustangs.com/Musta...rs___Decoders/

 

well he said its not a dd so def go atleast 4.10 but what are ur plans for the engine? cuz my buddy has a markVII and he had HCI and all boltons and had 4.10 but now that he switched to the vortech he put the 3.73 back in and runs low 11s

 

well to tell you the truth i was i chevy man until now and i got this friend of mine that has a stang with a stock 4.6 with cold air intake, and a few bolt ons shirt throw shifter, nitto drag tires 2754017 and a huge cowl hood, and he thinks it is bad, i realy just want to spank that a** one good time, after that its just a street strip car not so much a top end car but an off the line tire, but i was wondering what would be too much and cause me not to have traction in the lower gears

 

i just put 373's in my car it was tottaly worth it...if you do alot of highway driving 355's would be good.

 

looked on that link and i think im probly going to go with 4:56 or 430, because the 4:56 gear will put me at ~2250 rpm @ ~60 mph. this is just about what im looking for i mean its just a play toy, i wonder how this gear will run at the track? and also where should i look for gears i mean arent they pretty much all the same?

 

http://www.latemodelrestoration.com/...ts/mgears.aspx

they have both 4.56 and 4.30s

 

If you go with 4.56s you will either need to grind your posi center pin or buy another one made for that gear. With those 28" tall rear tires I would say at least 4.30.