73 rear axle missing parts

[Steve McMahan]

Good morning. I’m in the middle of rear axle and spring clean up and now that I have my new 73 Parts book, I noticed that my rear axle spring perches are missing parts. Here is the diagram from the book, with the missing parts identified in the red circles:




When I had it apart, it initially worried me that the pin holding together the rear spring was so much smaller that the hole in the bottom bracket. I now see why. Is this a common removal that others have done or should I add these to the parts list of missing but needed parts?

Thanks again for the help.

 

[Hemikiller]

The clamshells and insulators weren't used on the Mustangs. For '73, they were only used on the Cougar. 71 and earlier Torino/Montego had them as well.

 

[Steve McMahan]

Well, I’m kinda sad. This pic is out of my new 1973 Mustang Parts and Illustrations book from Forel Publishing, and it’s the wrong illustration for our cars. I wonder how many other pics are wrong. Thanks @Hemikiller for the correct photo.

 

[Hemikiller]

That image is taken directly from the Ford Master Parts Catalog, so it's a Ford issue and not on Forel. They may have intended to use them, but the idea got dropped, or they simply decided to use the Cougar illustration with a "copy-paste" and figured the techs could noodle it out. There's no Mustang application for those parts in the MPC, so if a tech decided to dig, it would be fairly obvious. TBH, a note of "N/A - Mustang" would be appropriate.

 

[Steve McMahan]

Were those “5741” a non metal part to create a smoother ride, or something like that?

 

[Don C]

The part number 5A313 is a wedge that was used to adjust the pinion angle, when necessary, and comes in 1, 1.5 and 2 degrees.
5741 were rubber and called insulators, likely to reduce vibrations and road noise.