How To Make A Stronger 7.5

Topic: How To Make A Stronger 7.5 (Read 2772 times) previous topic - next topic

How To Make A Stronger 7.5

Reply #15 – April 22, 2014, 11:10:02 PM

http://www.dfwstangs.net/forums/showthread.php?p=6341925

here at least one guy says a 7.5 he borrowed from an 88 2.3 coupe had 3:73's in it.

from what i can tell, traction lock was optional on the 2.3 and manuals had a 3:45 and autos had a 3:73. Not a lot of the links are very trust worthy though.

from what I've checked, 2 or 3 4 bangers had 3:73's and traction lock. i was under the assumption they all did.

i personally don't see a need to upgrade from a 7.5 until i blow one up, and out of the 7 or 8 cars I've had, none have. i don't think any have been traction lock though.

How To Make A Stronger 7.5

Reply #16 – April 23, 2014, 12:07:28 PM

Of all the 2.3 cars I've ever seen (quite a flipping few, actually) the ONLY one that has had a trac locked rear is mine...and I swapped that one in.

I don't know about the SVO/Turbo GT stangs of 20+ years ago, but I can say that I've never heard of an aero 2.3 stang having such an equipped 7.5 rear..not saying it's not possible, but I've never heard of them.

How To Make A Stronger 7.5

Reply #17 – April 23, 2014, 05:22:45 PM

I've never seen trac lock in a 4-cyl Mustang either. I have seen plenty with 3.73 gears though

How To Make A Stronger 7.5

Reply #18 – April 23, 2014, 07:42:23 PM

I finally pulled the cover off of my 7.5 with 3.45's. I think I found the source of my noise. I'm missing about 4 complete teeth on the ring gear. 2 missing in one spot and about a 1/4 way around the gear another 2 are missing. Today wasn't a good day. Not only that but the new clutch I put in isn't working right. I'll probably have to pull the tranny again.

How To Make A Stronger 7.5

Reply #19 – April 24, 2014, 04:10:02 PM

If you are set on keeping the 7.5 then the ranger gear and trac-lok swap is pretty nice. Knock the rear end apart, change the axle bearings & seals, and inspect the bearing surface on each axle. I would take the Ranger parts and your rear end to someone that can setup the gears. I leave the axles out as I don't like them messing with it as its just more work they have to do when I can knock it out. Get a complete rebuild kit like the RaTech 304K or 3006K if you want the axle bearings as well:

http://www.ratechmfg.com/fordstandard.htm

You will also need a trac-lok rebuild kit but finding one for a 7.5" is not as easy as the 8.8"

http://www.ringpinion.com/b2c/ProductDetails.aspx?ProdID=1039&Product=YPKF7.5-PC&Brand=Yukon_Gear_and_Axle&ShowAA=True&Year=1993&Model=Mustang&DriveType=Rear%20Diff%20-%20RWD&DiffId=159&Source=DiffWizard

http://broncograveyard.com/bronco/i-92241-ford-7-5-trac-lok-clutch-kit.html

Take the trac-lok kit to the person setting up the rear end as well so its all done when you pick it back up. I have seen people charge anywhere from $100 to $200 to set one up but you may know someone who will hook you up.

Darren