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70 Mach 1 Competition Suspension Questions (Long)

802 Views 4 Replies 2 Participants Last post by  70calypsomach, 
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Need some help identifying parts that may be missing from my 351C rear suspension. My invoice sheet lists my car a having the Competition Suspension option. My car seems to be missing a few key rear parts. (#'s are from the assembly manual)
I have the following:
1/2 " rear sway bar
Spring bolt plate, non stagger ( P/N 5799)
Sway bar to spring attachment plate plate (P/N 5A775)

The following parts I think I am missing:
3 spacers above rear spring P/N 4137, 5736, 5723
1 spacer below rear spring P/N 5732

I purchased new rear springs from NPD (Eaton) for a 70 Mach 1 351 with competition suspension. What made me investigate was that my ride height seemed way too high. 9.5 '' from axle tube to jounce bumper stop. I should be only 3.66'. I do not have any load on the car. Missing powertrain, interior, rear glass, Etc.. 200 lbs in the rear seat area (me) only drops it 1/4 to 1/ 2".

Did I get incorrect spring or am I missing these spacers to set my ride height correctly.
Any recommendations on where to pick up these parts (Used or Repo)

Thanks


Mark Memmer
70 Calypso Coral Mach 1 351C 4V Completed by 8/01
98 Cobra Convertible
93 5.0 Mustang LX (Winter Ride)
00 Volvo S80 (Wifes Ride)
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Discussion Starter · #5 ·
Marc-- I am measuring like the assembly manual shows, from the top of the axle tube to the point where the rubber axle snubber/bumper attaches to the frame. The design ride height comes from a table on that page (pg 37 in Osborn chassis manual) On page 34 they show a measurement of 4.82 for the rear and 5.88 for the front. I have never seen the blocks they show in the assembly manual on a mustang either, but have never really looked for them. I hope you are right about the settling.

Mark Memmer
70 Calypso Coral Mach 1 351C 4V Completed by 8/01
98 Cobra Convertible
93 5.0 Mustang LX (Winter Ride)
00 Volvo S80 (Wifes Ride)
 
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