Blackout

How much hp and tq can the 99-04 v6 mustang handle ?

stupidgenius36

I'd like to know as well. I'm currently deciding whether to replace the whole axle or just the gears.

1999Pony

They arent that strong. Id say over 300 hp is pushing its limits. That being said, theres guys out there running them with alot more power then that. I dont know how hard they beat on it or what but they exist. IMO its worth doing the upgrade to an 8.8 instead of doing gears and posi in the 7.5

Ive been through one 7.5 already and I have a stock motor. However, I beat the crap out of my car.

shurtual86

Blackout

Just to be curious what changes must be made doing the swap? Such as a driveshaft? What do you need to change?

1999Pony

Just the rear. Nothing else

skunk21

The 7.5 can live but it's threshold is low like stated since people have blown them with stock hp. gears are limited and really any money put into a 7.5 could be spent on an 8.8. keep in mind when shopping for an 8.8 the years since rearend widths are different. try and stay within your years and you wil be fine example 94-04 and 94 -98. if you used a 94-98 rear it is shorter so spacers would be needed and teh lower control arm bolt holes are smaller in dia. than the 94 and up 8.8s.

Blackout

That's rather pathetic ford put this wimp *** rear end on these cars. One day I plan to rear end swap.

shurtual86

Yup.

stupidgenius36

Yeah, but that's how it goes. Most people won't ever need to upgrade the rear end, so there's no point in ford going all out on it.

I feel your frustration though... I'm also currently contemplating a rear end swap. Just gears would be so much cheaper...