I'm not very good at interpreting the MPC and would appreciate some help
For a 1970 Mach 1 application wherein I'm installing new rear leaf springs, which of the following shackles is the most correct? NPD carries all of these yet between NPD's website, Detroit/Eaton's site and Scott Drake's site, I cannot figure out which shackle I should be using. Some shackles are listed as "HD" yet I don't see reference to "HD" or Mach suspension in the MPC
C6DZ-5630-A 1/2" dia studs
C4DZ-5630-A 9/16" dia studs, 1" longer
C4DZ-5630-B 9/16" dia studs
C4DZ-5630-B 9/16" dia studs
This is for 64 and 65 Mustangs only.
C4DZ-5630-A 9/16" dia studs, 1" longer
This is a longer shackle, but not used on assembly line Mustangs.
C6DZ-5630-A 1/2" dia studs
This is for 66 thru 69, replace by D1ZZ-5630-A for service replacements.
D1ZZ-5630-A 1/2" dia studs
This is for 70 and on, and is the replacement for 66 thru 69
I believe the side plates were "redesigned" for ease of manufacturing.
All this was extracted from the 75 edition of Ford Car Parts (aka MPC), Section 54 pages 39 and 40.
I suggest you use the MPC in this Forums library and review those pages.
Jim
