and if you think you may go with nitrous or a blower in the future you will need an 8.8 at that point anyways. if not then a posi on the 7.5 will be fine

yes you can find entire 8.8 assemblies for cheap. i saw for 650$ the other day a 8.8 rear end with 31 spline axles and 4:10's installed on craigslist. way too far of a drive for me to want to pick it up though and shipping would suck.

 

It Looks Like It Might Be Easier To Buy A Gt Rear End....
And Have A Shop Install It....

 

I have done both to my cars and i highly recommend doing a whole axle swap. It was much easier imo...all you gotta do is lower the rear take off the control arms and pull it out and replace it.....changing the internals on a rear can be very tricky and also dangerous.....go with the axle swap

 

thats what i was thinking how expensive would a whole axle be? for a 99

 

well i found my 04 gt 8.8 with a 3.73 for $250 at a swap meet at beech bend...but i have also seen them for $800.....but you want to make sure you get a rear end with a 3.55/3.73/or 4.10 gear in it becuase if its any higher than those then you would just be gaining posi. You would eventually want to put a lower gear in it then you would have to mess with it internally.

 

first off it's for an 8.8 axle. secondle it's an open differential just like your 7.5 stock differential.the guy calls it a 31 spline open positraction differential.

then he says it not a posi. it isn't a posi. it's open and i am quite sure it isn't 31 spline and open

junk.

i don't like the T-lok but if your not planning on much power and have an auto you will be fine with the 7.5 t-lok

www.gefracing.com has the cheapest price on them

 

I Might Put A Turbo In This Spring..So I Might Have To Go With The 8.8 I Don't Want To Mess With Internals. But Don't You Have To Take The Suspension Off When Putting In The New Axle?

 

upper and lower control arms, rear shocks and brake assemblies, then it will slide out.

 

Not anymore. i had actually sold it while I was offshore, but when I got home to take it out the center pin bolt had broken. It wasn't an issue for driving if someone bought the whole rear, but when i went to cut it to take it out, it just became a mess. There was no way to keep the shavings out of the diff, and I just couldn't sell a rear end full of metal to anyone. Even if I could have cleaned it out, I still wouldn't have felt comfortable letting someone else put it in their car. I ended up junking the whole rear end.

I did recently find a stock rear end for my car though lol. I just need to pull it off the car I found and stick it in storage, the car also has the engine block I need for the 4.3 build. My stock of spare parts has dwindled down to 2 spare set of wheels (1 set of Bullitts, 1 set of 17" GT's), 17x10.5 Termi wheels with 315 NT555R's, stock headlights, projectors with a scuff on one, and little odds and ends. No more collection of rear ends, sway bars, springs, brakes, and all that other stuff. It's so sad

I plan to have my stock of spare parts built bac kup by summer though. I'm gonna go to auction friday and see if I can buy a couple of wrecked stangs and start gutting them. I'm stuck offshore right now though.

 

Off Shore? Where Abouts? You In The Service?