2003 Mach 1 Springs July 03, 2011, 05:19:52 PM Has anyone put 2003 Mach 1 springs (part#MCH 3r33 5310-AA) on a T Bird or Cougar ? I have a set I want to put on but they look like the car might sit too low . I have an 87 Cougar with a stock (no po ) 5.0 . I have 245/60r 15's on the front and I might have to put on some 225/50r 15's i have . Quote Selected
2003 Mach 1 Springs Reply #1 – July 03, 2011, 05:34:07 PM They'll for sure drop it down, but the tires should clear...are the wheels stock? If they have different-than-stock offset, the tires may rub. Quote Selected
2003 Mach 1 Springs Reply #2 – July 03, 2011, 06:38:36 PM Mach springs with 225/60R15's on 10-holes:...And with 225/60R16's on snowflakes. These are both stock tire sizes available from the factory on these cars.I had CHE adjustable rear lower control arms on the back, and had them adjusted up quite high. The rear might sit too low with stock LCA's and Mach springs - they're about 3" shorter than stock springs... Quote Selected
2003 Mach 1 Springs Reply #3 – July 03, 2011, 10:51:27 PM Quote from: Thunder Chicken;362739Mach springs with 225/60R15's on 10-holes:...And with 225/60R16's on snowflakes. These are both stock tire sizes available from the factory on these cars.I had CHE adjustable rear lower control arms on the back, and had them adjusted up quite high. The rear might sit too low with stock LCA's and Mach springs - they're about 3" shorter than stock springs... Thanks alot you provided exactly what I needed . After seeing your pics I think my 245/60's are going to be a little too wide and my 225/50's a little too short . I guess I'll buy some 225/60's . For the rear I have some custom springs by Coil Spring Specialties (320 lb inch 1" ) drop and I'll stay with my 255/60's for now. Thanks for both of your replies . Quote Selected
2003 Mach 1 Springs Reply #4 – July 04, 2011, 01:56:17 AM yeah, the rear sits waaaaay low without the adjustables. the front was also high for me as well, i guess due to the 5.0/4.6 weight difference. Quote Selected
2003 Mach 1 Springs Reply #5 – July 04, 2011, 10:35:22 AM Quote from: jncocowboyx;362770yeah, the rear sits waaaaay low without the adjustables. the front was also high for me as well, i guess due to the 5.0/4.6 weight difference. High ? Do you have any pics? Quote Selected
2003 Mach 1 Springs Reply #6 – July 04, 2011, 01:23:18 PM without adj. lca's it will really drop it down. I have mine just about maxed out. Here is a link with mine.http://www.foxtbirdcougarforums.com/showthread.php?31280-Before-and-after-with-mach1-s Quote Selected
2003 Mach 1 Springs Reply #7 – July 04, 2011, 09:32:08 PM Quote from: Kitz Kat;362804without adj. lca's it will really drop it down. I have mine just about maxed out. Here is a link with mine.http://www.foxtbirdcougarforums.com/showthread.php?31280-Before-and-after-with-mach1-sI love your ride bro . The stance is awesome , just what I Want . Quote Selected
2003 Mach 1 Springs Reply #8 – July 05, 2011, 08:29:01 AM I just put one of my custom rear springs next to one of the Mach rear springs and it was the same length . Much thicker but the same length . I hope that doesn't mean I'll have to get new adjustable lower control arms . I already have the CHE non adjustable arms . Quote Selected
2003 Mach 1 Springs Reply #9 – July 05, 2011, 08:37:32 AM Quote from: ricktjr;362855I just put one of my custom rear springs next to one of the Mach rear springs and it was the same length . Much thicker but the same length . I hope that doesn't mean I'll have to get new adjustable lower control arms . I already have the CHE non adjustable arms . Another shot . You can see the difference much better in person . Quote Selected
2003 Mach 1 Springs Reply #10 – July 05, 2011, 02:33:45 PM The rears are easy, try one out and see. The customs look heavier you might get away without adj lca's Quote Selected
2003 Mach 1 Springs Reply #11 – July 05, 2011, 08:44:34 PM Quote from: Kitz Kat;362861The rears are easy, try one out and see. The customs look heavier you might get away without adj lca's I did omfg !!! The springs are custom jobs by Coil Springs Sepcialties and the front was supposed to go down 1.5" the back 1" well this is how the back looks Quote Selected
2003 Mach 1 Springs Reply #12 – July 05, 2011, 08:52:23 PM The tires are 255/60r15's and the pic doesn't do justice to how low it looks . The shop is a mess and I don't have alot of room around the lift so that's the best I could do pic wise . The car's in primer so I don't care about the fingerprints . Even though the front was supposed to be lower it sits higher now so next I'll try the Mach front springs . Can a thinner spring have a higher rate (lbs/inch) than a thicker one ? The custom rears were supposed to be over 300 lbs/inch much higher than the stock springs ( 200 something ? ) but they were thinner . What's up with that? Quote Selected
2003 Mach 1 Springs Reply #14 – July 06, 2011, 11:58:05 AM All of those dead coils in the stock spring help keep the height. I think the rear sits about right, if you can get the front low enough to match. Quote Selected
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