gears???

[jimmypage]

i have an edge platinum on there with intake and exhaust the shop around here sayed it will cost $1200 i am just getting mixed opinions on to do it or not i dont have a problem paying the money for it only if it will be worth it

 

[rynarnell]

if it was me and i wasnt doing a whole lot of highway driving(fuel economy), Id do it just to be a mustang eater!!

 

[Fx4ord]

if it was me and i wasnt doing a whole lot of highway driving(fuel economy), Id do it just to be a mustang eater!!

Amen Amen.......That's exactly why I did them.

 

[irish4x4]

I've been playing with this plan also. A buddy of mine works for a drivline service shop so he can get the parts cheap and he and I would do the install after hours. But, my problem is I dont want to take the gearing to 4.56 because I get the best MPG when I stay away from the 2000 RPM range. Also I dont know if I'll run the 37's again when I replace these tires. I think I might go to the 4.11's just to "help" get closer to stock but not quite.

 

[jimmypage]

if i run a 37" tire and 4:45 gears what would be my rmp's at 70 mph thanks for you input

 

[irish4x4]

if i run a 37" tire and 4:45 gears what would be my rmp's at 70 mph thanks for you input

Well, by using the ratio formula you com up with 4:48-ish. You have to look at the closest available ratio. Your closest on the high side is the 4:56. Im pretty sure they dont make a 4:45 ring and pinion.

 

[DaveBen]

I have never heard of a 4:45 gear set. 4:11 or 4:56, yes.

Dave

 

[patrickc]

I have 4.56's in my truck and it was one the best mods I've done yet. It restored all of my low end torque and I gained back alot of "off the line" acceleration. The 4.56's in combination with my 38's put the rpms right where they were when my truck was stock. (265/75R16's with 3.73 gears)