73 RR Rear Length

[Mean 318]

how Long is an 8 3/4 out of a 73 RR? How long is an 8 3/4 out of a 70 B body? Thanks!

[John_Kunkel]

By "long" do you mean "wide"?

Rear end widths, drum-to-drum:

B BODY

'65-'67= 59 1/2"
'68-'70= 60 1/8"
'71-'74= 63"
'71-'73 wagon= 64 3/8"

[71gtx]

Body line   Track   Perches   Notes
A-body, 65-72   55.6    43.0    4" lug bolt circle
B-body, 62-70   59.2    44.0    
B-body, 71-74 62.0    47.3    
B-body station wagon, 71-72   63.4    47.3    
C-body, 64-72   63.4    47.3    
D-body, 64-72   63.4    47.3    
E-body, 70-74   60.7    46.0

[71gtx]

Part#    Application    Flange to Flange Width    
   
 



2643409    66-67 B-body    54-1/4"    
2852838    68-69 B-body    54-15/16"    same as 1970 B-body, 1/32" difference
3432295    70 B-body    54-29/32"    same as 1968-69 B-body, 1/32" difference
3507502    71-74 B-body    57-47/64"    

71-73 B-body  SW
   59-1/8"    

   
2852882    70-74 E-body    56-7/16"

[Mean 318]

I am looking of at putting an 8 3/4 out of either a 73 RR or a 71 Cuda and was wondering how much closer the wheels will be to the 1/4s. I do know that I will have to relocate the mounts. Thanks for the help guys!