Installed Mach 1 Springs.....

Way2QWK

Member
Dec 4, 2000
62
7
8
Tucson, AZ
Installed stock 03 Mach 1 springs over the weekend. After a year of internet research and reading every thread on the internet about Bullitt/Mach springs, I decieded they were the best choise for my goals. I wanted improved suspension feel and no more than .75" drop. These springs met all goals.

I cant believe how improved the chassis is overall with Mach springs vs the stock springs. Ride has a performance feel but still very smooth. Im very impressed with how smooth and stable the car feels on the freeway. No more floaty feel the stock springs had. I am also running Koni STR-T struts and shocks. Perfect match with these springs.

To get the .75 drop in the front i installed springs with no isolators. No extra NVH. I may put the upper isolator back in to raise the front a hair, but will wait until I decide on what new wheels to go with. The rear actally stayed the same. The factory isolators were worn away. I used the stock Mach isolators so That must be why the height stayed the same. I plan to get MM adjustable lower arms so im not to concerned with rear height.

Any one looking for a slight drop and better over all suspension/chassis feel should consider these springs. I think the Bullitt spring would have dropped it a full 1" which would have been to much for my goal.

Fender height now with Mach 1 springs, stock rims and tire size, 3 core radiator and AOD trans
Front 26"
Rear 26.5"
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They are hard to come by. I was looking for about a year until I happened to check the classifieds at Svtperformance.com a few weeks ago and found a set for a very reasonable price shipped. Send a pm to member twymenburr on svtperformance. He parts out a lot of mustangs.
 
Car looks great.

I agree about the SC rims. Sometimes I like them and sometimes I don't. I wish there were more options for 4 lug wheels. I would like to swap wheels but I really don't want to convert to 5 lug.