- Joined
- Jul 5, 2010
- Messages
- 6,685
- Reaction score
- 386
- Location
- Grand Rapids, MI
- My Car
- 73 Convertible
Yes, cut the bottom of the spring, the top is ground flat.
Probably the best move with hindsight. I have sent LMM an email with both photos attached to see what they suggest. Then I will go from there.UKsilverMach1,
You could call Laurel Mountain Mustang and send them the same picture listed here and to see what they say. I know that it is standard to cut coil springs, but with the Coil spring, the
Strength of coil springs are determined by the diameter of the wire, length of the wire used, and diameter of the finished coil. I would rather have the correct spring with the correct rate. But that is me!
mustang7173
Have seen these 8 coils on ebay, advertised by LMM, for 71-73 302 351 cars.
Could be the answer to the problem ?
Link
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=380464446508&fromMakeTrack=true&ssPageName=VIP:watchlink:top:en
The one's in the link on ebay will be the standard springs...not the same if your car came with competition suspension.
The one's I would recommend and have seen a number of cars with people who were happy with them are these...
Jeff
http://www.summitracing.com/parts/sdk-c7zz-5310-p
Have seen these 8 coils on ebay, advertised by LMM, for 71-73 302 351 cars.
Could be the answer to the problem ?
Link
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=380464446508&fromMakeTrack=true&ssPageName=VIP:watchlink:top:en
The one's in the link on ebay will be the standard springs...not the same if your car came with competition suspension.
The one's I would recommend and have seen a number of cars with people who were happy with them are these...
Jeff
http://www.summitracing.com/parts/sdk-c7zz-5310-p
Have seen these 8 coils on ebay, advertised by LMM, for 71-73 302 351 cars.
Could be the answer to the problem ?
Link
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=380464446508&fromMakeTrack=true&ssPageName=VIP:watchlink:top:en
Would my car have come with stock or competition suspension ?
It's a Mach 1 running a 3 speed and 302 and only the small front anti roll bar.
I'm guessing this would be stock ?
Ha. first on the list are a couple of electric fans and a 5 speed conversion. But then that's another threadfix the whole height problem very easily by installing a Big Block motor! Good luck these guys will get you where you need to be! Beautiful car by the way!!
Excellent Mustang7173. Thank you very much for all the well informed leg work you've done on this subject.UKsilverMach1,
According to the Ford Master Parts catalog, your 1972 Mustang (63R) Mach 1 with only Power Steering installed, came with the 4K springs. Check out the differences in the 4K and 4L springs.
I called Eaton Detroit Springs and they stated that the C7ZZ-5310-AA corresponds to the MC1250 springs. I told him how high the front was sitting up and he stated that something was wrong. He also stated that the MC1250 spring was made with the wire size was 0.673 diameter with a free height of 14 5/8 inches tall.
It seems that the MC1250 was made more in line with the 4L spring. He also stated that the 0.635 wire was a bit too small. Interesting! It would be a definite benefit to give them call about the front coils.
source: Ford Master Parts Catalog, Copyright FMC May, 1975
mustang7173
Excellent Mustang7173. Thank you very much for all the well informed leg work you've done on this subject.UKsilverMach1,
According to the Ford Master Parts catalog, your 1972 Mustang (63R) Mach 1 with only Power Steering installed, came with the 4K springs. Check out the differences in the 4K and 4L springs.
I called Eaton Detroit Springs and they stated that the C7ZZ-5310-AA corresponds to the MC1250 springs. I told him how high the front was sitting up and he stated that something was wrong. He also stated that the MC1250 spring was made with the wire size was 0.673 diameter with a free height of 14 5/8 inches tall.
It seems that the MC1250 was made more in line with the 4L spring. He also stated that the 0.635 wire was a bit too small. Interesting! It would be a definite benefit to give them call about the front coils.
source: Ford Master Parts Catalog, Copyright FMC May, 1975
mustang7173
There is quite a difference between the 4L and 4K springs. For a start there is nearly a one coil difference between the two springs. Mine being the 4K eight coils.
Which begs the question of, companies that offer full suspension kits inturpreting Small Blocks kits as using 9 coils and Big Block kits as using 10 coils, is misleading.
I have been exchanging emails with Laurel Mountain Mustang over the past few days, complete with the photos in the thread. The last email from LMM stated the front SB 9 coils, supplied with the kit, will do most of their 'settling' in the first 100 miles.
With a 4 1/2" gap between the top of the tyre and the wing arch, I can't see it myself and think there should be advice on cars fitted with engine bay extras.
I will phone Eaton Detroit springs and see what they have to offer.
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