72 rear suspension in a 73

[Mohondro]

Hey everyone, I am putting what is assumed to be a 72 8 3/4 into my 73 charger. I understand that the 73 has rubber isolator stacks and different sized mounting holes for the leaf spring. What I want to know is if I could use 72 leaf springs so that I can avoid the rubber isolators, and if I could also use the 72 spring mounts on my 73 because they only make those hangers up to 72. I just don’t want to have to worry about the isolators. If I could basically just put a 72 assembly in the rear that would be great. Can I just basically bypass the whole rubber isolator deal.

 

[T2R9]

Yes all the 72 springs and hangers are a direct bolt in.

 

[Hilljack68]

I'm in the process of doing the same thing. I sourced a 72 rear end (8 3/4) and spring hangers, and got new leafs from ESPO for a 72... all for my 73 Charger. Yeah, I'm not hip on those isolators either.

 

[RR Fan Dan]

I'm not hip on those isolators either.

Firm feel sells a kit to delete them for 72-79

Firmfeel Mopar Suspension and Steering

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firmfeel.com

 

[1 Wild R/T]

Firm feel sells a kit to delete them for 72-79

http://[URL]https://firmfeel.com/b_body_late_mopar_iso_delete_kit.html

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View attachment 1952623

So, firm feel sells reproductions of the original 72 & earlier design spring plates... Call it an ISO Delete kit & charge $425..... Yeah... Pass...

 

[Hilljack68]

So, firm feel sells reproductions of the original 72 & earlier design spring plates... Call it an ISO Delete kit & charge $425..... Yeah... Pass...

Agreed. I got a set of pre-73 mounts of a buddy of mine for $10

 

[RR Fan Dan]

So, firm feel sells reproductions of the original 72 & earlier design spring plates... Call it an ISO Delete kit & charge $425..... Yeah... Pass...

Don’t shoot the messenger. Maybe there is something more to them than that. Will 73 springs fit on the 72 plate or do you have to use all 72 parts?

 

[1 Wild R/T]

Don’t shoot the messenger. Maybe there is something more to them than that. Will 73 springs fit on the 72 plate or do you have to use all 72 parts?

You can use either... Te difference is the locator bolt which Firm Feel includes.. But they are easily sourced for a few $$$ so that don't justify the price..