Rear springs, what's everyone using? November 30, 2015, 08:53:55 PM Back in October I replaced the spring isolators on my Thunderbird and the rear end went up. It wheel to fender gap is about 3/4"-1" higher than the front (around 2.25" in the front, almost 3" in the rear). I would like to get some springs to lower the rear of the car. I plan on running Maximum Motorsports adjustable rear control arms so I can set the correct ride height: http://www.maximummotorsports.com/Extreme-Duty-Adjustable-Rear-lower-Control-Arms-1983-1989-Thunderbird-P1444.aspxSo these are the factory replacement springs for an 87-88 Thunderbird: http://www.oreillyauto.com/site/c/detail/MOO0/8599/03360.oap?year=1987&make=Ford&model=Thunderbird&vi=1430183&ck=Search_03360_1430183_3405&pt=03360&ppt=C0361These are for an 87-93 Mustang: http://www.oreillyauto.com/site/c/detail/MOO0/8621/03360.oap?year=1987&make=Ford&model=Mustang&vi=1133918&ck=Search_03360_1133918_3405&pt=03360&ppt=C0361#itemDetailTab_These are for an 87-93 Mustang: http://www.oreillyauto.com/site/c/detail/MOO0/7331/03360.oap?year=1993&make=Ford&model=Mustang&vi=1134111&ck=Search_03360_1134111_-1&pt=03360&ppt=C0361#itemDetailTab_Can I run the Mustang springs to get a 1-1.5" drop and then adjust it out with the control arms or are the Mustang springs too "weak" for my application? Quote Selected
Rear springs, what's everyone using? Reply #1 – December 01, 2015, 04:56:50 PM Well I'm fairly certain that MOOG doesn't make replacement rear springs for 94-04 SN95 Mustangs that aren't cargo coils. I'd like to run 94-04 Mustang GT coupe or Bullitt springs in the rear of my Thunderbird. I may have to try ordering them from a Ford dealer unless someone can find the part number of those springs from MOOG, which I can't seem to find. Yes I would rather buy brand new springs than used ones. Because I'm crazy Quote Selected
Rear springs, what's everyone using? Reply #2 – December 01, 2015, 06:32:20 PM Apparently one can buy 2001 Mustang GT Bullitt spring new from Ford for $98.37 each: http://www.fordparts.com/Commerce/PartDetail.aspx?n=o6u4JAHAiY118ZW%2fPpAp0A%3d%3d&id=333636090&m=2&search=true&year=2001&make=Ford&model=MustangEdit: No you can't. I tried to order them. I get this pop up:QuoteDue to low demand, Ford Motor Company is no longer manufacturing the following part(s) you selected. Please contact your FordParts.com dealer with questions. Quote Selected
Rear springs, what's everyone using? Reply #3 – December 01, 2015, 08:45:22 PM All of the SN95 rear springs are obsolete from Ford now, I checked the various part numbers earlier this year after buying my TC. Might be some dealers in the U.S. that still have some on the shelf, I can't do a U.S. dealer search from up here in Canuckistan.cheersEd Quote Selected
Rear springs, what's everyone using? Reply #4 – December 01, 2015, 09:17:24 PM I wonder if I could just use the Moog 8621 spring and just use the adjusters to set the ride height? I'm just a bit worried about the load rating on the spring vs the Thunderbird springs as my car is one of the heaviest foxthundercats. Quote Selected
Rear springs, what's everyone using? Reply #5 – December 01, 2015, 09:31:45 PM Actually I may have found a solution: http://www.maximummotorsports.com/MM-Road-Track-Spring-Kit-1996-98-Conv-1999-04-GT-Conv-P1095.aspxThe spring rate is similar to Bullitt/Mach 1 springs and I can just order the rear pair. Quote Selected
Rear springs, what's everyone using? Reply #6 – December 03, 2015, 06:14:06 PM This is possibly another option, Moog CC835: http://www.oreillyauto.com/site/c/detail/MOO0/CC835/03360.oap?year=1995&make=Ford&model=Mustang&vi=1134166&ck=Search_03360_1134166_3405&pt=03360&ppt=C0361It's listed as a replacement for a 1995 Mustang GT. If I can't find a good pair of SN95 Mustang GT springs I may give these a shot. Quote Selected
Rear springs, what's everyone using? Reply #7 – December 03, 2015, 07:13:54 PM When I did mine, I used all four from a 86 Mustang GT. I had to add a 1/2" poly spacer on the rear to get the ride height I wanted. Quote Selected
Rear springs, what's everyone using? Reply #8 – December 03, 2015, 08:59:12 PM 1999 mustang springs all around. Quote Selected
Rear springs, what's everyone using? Reply #9 – December 03, 2015, 09:35:53 PM Quote from: vinnietbird;4527761999 mustang springs all around.I've got basically SN95 springs with poly isolators in the front (Moog 8598) but I'm having trouble finding some stock like new SN95 rears. I can't run stock Thunderbird springs with the Maximum Motorsports rear arms as they will raise the car too much. Quote Selected
Rear springs, what's everyone using? Reply #10 – March 16, 2016, 12:02:31 PM I put '03 Mustang GT convertible (sn95) springs all around in my '88 Cougar XR7 last year that I found at a wrecking yard from a wrecked car with only 40,000 kms on it and the springs were like new-no rust. The front height stayed the same - about 2 1/2" top of tire to fender, but the rear end was slammed, only about 1/2" from top of tire to quarter panel. Not sure why this happened but be careful when changing springs. I thought I did my homework but it didn't work out for me even though many guys on here have had great success with sn95 springs like ^vinnies^ thunderbird. Quote Selected
Rear springs, what's everyone using? Reply #11 – March 16, 2016, 12:36:25 PM Quote from: AT8 Cat;454321I put '03 Mustang GT convertible (sn95) springs all around in my '88 Cougar XR7 last year that I found at a wrecking yard from a wrecked car with only 40,000 kms on it and the springs were like new-no rust. The front height stayed the same - about 2 1/2" top of tire to fender, but the rear end was slammed, only about 1/2" from top of tire to quarter panel. Not sure why this happened but be careful when changing springs. I thought I did my homework but it didn't work out for me even though many guys on here have had great success with sn95 springs like ^vinnies^ thunderbird.Were they from a V8 or V6 car? The springs were different between the two.Motorsport C-Kits in the front. Rears are SN-95 V8 convert (96-98). The RLCA mounting point on the rear axle is lowered about 3/4", so that brought things down a bit, as well. Quote Selected
Rear springs, what's everyone using? Reply #12 – March 16, 2016, 02:08:24 PM All 4 were from a '03 Mustang GT 4.6L v8. Quote Selected
Rear springs, what's everyone using? Reply #13 – March 17, 2016, 08:51:02 AM Moog part # 8598 in front and 8599 in the rear.Full Moog spec list:http://i280.photobucket.com/albums/kk191/V8Demon/Car%20Tech/MoogSpringsspecsheet-1.pnghttp://i280.photobucket.com/albums/kk191/V8Demon/Car%20Tech/MoogSpringsspecsheet-2.png Quote Selected
Rear springs, what's everyone using? Reply #14 – March 17, 2016, 12:04:04 PM I've got a set of 98 Mustang GT springs sitting here. Once maximum Motorsports decides to ship the adjustable rear lower control arms I ordered (should be next week) I'll get to swapping. If the car sits too low even with the control arm perch adjusted to it's highest setting and the 98 GT springs I'll just start cutting some of the coil off on the stock springs till I get what I want :hick: Quote Selected