Put in C-springs for a test fit February 05, 2009, 09:42:20 PM well, its back on the ground, and does look sweet, except its just too low for my liking. Pass Front start - 27 1/16" after - 26 1/8" Diff - 15/16"Driv Front start - 26 9/16" after - 25 7/8 diff - 11/16Pass Rear start - 27 1/2" after - 25 1/2" diff - 2"Driv Rear start - 26 1/2" after - 24 15/16" diff - 1 9/16"All these measurements are to the highest point of the wheelwell. The rear springs are in there out of the box without the needed spacers that I would need to make. Spacers should be somewhere around 1 1/4". The car always leaned to the drivers side, and it appears to have cut that difference in half, but I had really thought it would cure it. I am also thinking maybe I need to go coilovers afterall :shrug: Quote Selected
Put in C-springs for a test fit Reply #1 – February 05, 2009, 10:02:53 PM That's a rather large difference side to side in the rear. My new rear springs fixed mine in the back. The front is still about 1/4" higher on the passenger side...Has the car ever been hit? Quote Selected
Put in C-springs for a test fit Reply #2 – February 05, 2009, 10:19:25 PM I dont think so. I havent found anything on the car that has any signs that it has been hit. I was really hoping changing the springs would fix it:mad:Currently, I dont think I will be able to put this on our drive on lift considering my lip kept getting caught on it before. This is making me strongly consider coilovers on all 4 corners. What do you have to do to get the rears to work right. I read somewhere that you have to weld all that stuff so that it would take the stress? Quote Selected
Put in C-springs for a test fit Reply #3 – February 05, 2009, 10:19:46 PM It would look better if the back was higher. Mine has the same drivers side tilt - I couldn't fix it even my taking 30lb of the drivers side via a Odyssey battery. I ended up using a 1/4" spacer on the drivers side front only & that did the job. In the rear I have full adjustability for height with the CHE adjustables - best choice if you can afford them. I'm using the Mach1 springs BTW. Quote Selected
Put in C-springs for a test fit Reply #4 – February 05, 2009, 10:38:11 PM Well, i boxed the rear control arms and added poly bushings throughout. I'm trying to be more competitive in autox. I was planning to buy the che arms till dad pretty much told me I was stupid buying what I could make. Oh well, Its been apart over a month, and I still gotta put almost the entire interior back in. Quote Selected
Put in C-springs for a test fit Reply #5 – February 06, 2009, 02:43:21 AM You can always make ramps to get on the lift Quote Selected
Put in C-springs for a test fit Reply #6 – February 06, 2009, 06:43:11 AM Those rear springs are WAAAAAAYYYYY too light in regards to load rating. Something to the tune of about 400# PER spring.No amount of raising the back will solve that. Quote Selected
Put in C-springs for a test fit Reply #7 – February 06, 2009, 07:36:52 AM The che's are way better hands down than any boxed stock arm. Quote Selected
Put in C-springs for a test fit Reply #8 – February 06, 2009, 01:15:23 PM Quote from: Chuck W;255516Those rear springs are WAAAAAAYYYYY too light in regards to load rating. Something to the tune of about 400# PER spring.No amount of raising the back will solve that.Can you explain the load rating - I'm finding it difficult to find a definition. My assumption is that it's related to coil bind, but I'm not sure as I've also read where thin wire with fewer coils/inch can give a good spring rate but not be able to handle the loads without permanent deformation. Is the issue you're describing "short spring" or "overstressed wire"? Quote Selected
Put in C-springs for a test fit Reply #9 – February 06, 2009, 01:46:16 PM Basically how much load the spring can handle before being compressed.Those C-kit rear springs, while having a high spring rating (stiffness), aren't able to handle much in the way of loading. Not sure of the exact cause of the "issue", but the load rating is pretty low and not meant for these cars.I don't have my numbers here in front of me, but I can tell you it's a significant amount. Quote Selected
Put in C-springs for a test fit Reply #10 – February 06, 2009, 02:09:11 PM Quote from: Chuck W;255552Basically how much load the spring can handle before being compressed.Those C-kit rear springs, while having a high spring rating (stiffness), aren't able to handle much in the way of loading. Not sure of the exact cause of the "issue", but the load rating is pretty low and not meant for these cars.I don't have my numbers here in front of me, but I can tell you it's a significant amount.I was wondering as this data is extremely hard to find and over 50% of the people that use the term "load rating" are really talking about "spring rate" :beatyoass: I'm using the 250#/inch Mach 1 springs and I have no idea what their load rating is. Can I assume that someone with a "show/drag racing" car that keeps a clean trunk with not even a spare in there & never carries passengers can be less concerned about these load ratings? Quote Selected
Put in C-springs for a test fit Reply #11 – February 06, 2009, 02:32:07 PM Nah, when I say "load rating" I mean load rating.This info used to be on the spring tags themselves, and at one time I had factory paperwork for I think 96-98 Mustangs on what each of the 3-letter spring codes were and the resultant load ratings. IIRC, when they changed their coding/partnumbers, etc in 99, I think the useful info changed on the spring tags. Don't remember.For example, I think there were 4 or 5 different rear springs for the V8 Mustangs, and all had the same spring rate, but a different load rating( based on options, etc).Rough numbers... Fox Tbird/Cougars have a load rating of roughly 940#. SN-95's were rated around 700-750#. The C-Kit rears were barely 600#, if that.I have the info at home, and I know I have mentioned it here before as well.Your Mach 1 springs are less than 800# load rating I would imagine. Quote Selected
Put in C-springs for a test fit Reply #12 – February 06, 2009, 03:41:38 PM I'm getting confused, we are talking about c's being weak right?I would think they are. I love the details, considering I'm doin my front soon." again" Quote Selected
Put in C-springs for a test fit Reply #13 – February 06, 2009, 04:54:40 PM QuoteI love the details, considering I'm doin my front soon." again"Go with those Moog 1598's I'm diggin them mucho. Quote Selected
Put in C-springs for a test fit Reply #14 – February 06, 2009, 05:04:55 PM Quote from: V8Demon;255580Go with those Moog 1598's I'm diggin them mucho. I already got the machs and spacers and a plan. But anything new that might change my mind , Wouldn't take much. Quote Selected
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