More questions about Shackles

[RayL]

Ever look at something so long that you get less confident you know what you are looking at?

I cannot find the E-Body OEM shackle dimensions. I've come across references to both 3.5" and 4" center to center dimensions.

My '73 Challenger currently has 3.5" center to center on the 9/16" diameter pivots and are 3" plate to plate.

Are they correct for the car?

Thanks,
Ray

[MoparLeo]

3420118 is the factory part number.

[RayL]

3420118 is the factory part number.

Thanks @MoparLeo. Same part number I found in the 1973 parts book. But still not able to find the exact dimensions after looking on all the usual sites.

[RayL]

This listing's description shows the center to center as being 4" for factory part number 3420118. I'll keep searching around but would still welcome further input!

https://www.autoandtrucksprings.com/dodge-leaf-springshackle-kit-bt16mck/

Oem Replacement Dodge Rear of Rear Leaf Spring Shackle Kit,

FLAGG # (CD400), (CD712),

Applications With (2 1/2") Wide Rear Leaf Springs Only,

Top to Bottom Bolts (Studs),   Center to Center,   (4"),

Applications With (4) HB889 Half Bushings, (1") OD x (9/16") ID,

(2) Upper Frame Rubber Half Bushings,

(2) Leaf Spring Eye Rubber Half Bushings,

This Shackle Kit Replaces (1) Side,

Right Side, Left Side Shackle Kits Are The Same.

[RayL]

Just in case anyone comes across this post and wants to know how it ended: All E-Body years used OEM shackle part number 3420118. The center-to-center dimension on the pivot bolts is 4" (not the 3.5" I found on my car).

I purchased a set from ESPO SPRINGS N THINGS. Very affordable.

Enjoy!