Backing Plates

[Thackdaddy]

Any '65 and newer Dana 60 or 8 3/4" rearend with a 5 x 4 1/2" bolt pattern can use the same 10 x 2 1/2" backing plates. But, will the 10 x 2 1/2" backing plates from a 8 1/4 with a 5 x 4 1/2 bolt pattern fit the Dana and 8 3/4 also?

 

[67charger383]

Any '65 and newer Dana 60 or 8 3/4" rearend with a 5 x 4 1/2" bolt pattern can use the same 10 x 2 1/2" backing plates. But, will the 10 x 2 1/2" backing plates from a 8 1/4 with a 5 x 4 1/2 bolt pattern fit the Dana and 8 3/4 also?

Maybe? If I were you I'd just upgrade to 11 inch drums.

 

[Thackdaddy]

Maybe? If I were you I'd just upgrade to 11 inch drums.

Have front disc now and just completely rebuilt the rear brakes last summer. I am looking to buy a Strange 60 soon and reusing my rear brakes would save me a pretty good chunk of cash.

 

[67charger383]

Have front disc now.

meant rear drums.

 

[Big Bad Dad]

Related: My 78 Dodge D100 had the 8-1/4 rear with 11" brakes. When the rear end died, I replaced it with an 8-3/4 from an earlier model pickup. I swapped the 11" backing plates over to the 8-3/4. The flange pattern bolted up fine. Hope this helps.

 

[Darter6]

Thackdaddy, Answer to your question, yes

 

[4mulas]

Any '65 and newer Dana 60 or 8 3/4" rearend with a 5 x 4 1/2" bolt pattern can use the same 10 x 2 1/2" backing plates. But, will the 10 x 2 1/2" backing plates from a 8 1/4 with a 5 x 4 1/2 bolt pattern fit the Dana and 8 3/4 also?

Yes

 

[XCELLR8]

Let me get this correct. You can interchange the backing plates 11" and 10" between the Dana 60, 8 3/4", 9 1/4", and 8 1/4".

 

[Thackdaddy]

Let me get this correct. You can interchange the backing plates 11" and 10" between the Dana 60, 8 3/4", 9 1/4", and 8 1/4".

I did not ask about the 9 1/4 but regarding the others, yes.

 

[XCELLR8]

I did not ask about the 9 1/4 but regarding the others, yes.

Thanks for the reply. I will add that the 8 1/4 will work on a 9 1/4, as I just swapped mine last night.

 

[Bill76]

If ever need bolt circle dimensions go to wilwood web site , they have all the backing plate dimensions for almost any rear axle