mopar crazy
Well-Known Member
Does any know what size REAR brakes were offered on the 70 Duster with an 8 3/4 rear???
9, 10,or 11inch.
Thanks
9, 10,or 11inch.
Thanks
Drum Brake Specs
- Thread starter mopar crazy
- Start date
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7demon2
Registered User #1824
10 inch
mopar crazy
Well-Known Member
Let me put this a better way...
The small bolt pattern 5X4 only came with 9inch rear brakes. Correct???
Regardless if it was a 7 1/4 or 8 3/4 rear. Correct???
Thanks
The small bolt pattern 5X4 only came with 9inch rear brakes. Correct???
Regardless if it was a 7 1/4 or 8 3/4 rear. Correct???
Thanks
7demon2
Registered User #1824
1970 had 9 inch rears on slant 6 engines 10 inch on front. this is for the smaller rear
1970 had 10 inch on front and rear on all v8 cars. drums are also 10 inch for disc brake cars as well
this is for the 8 3/4 rear
this would apply to all small bolt pattern year cars.
1970 had 10 inch on front and rear on all v8 cars. drums are also 10 inch for disc brake cars as well
this is for the 8 3/4 rear
this would apply to all small bolt pattern year cars.
mopar crazy
Well-Known Member
7demon2 Thanks for your patience... I'm trying to grasp this.
The story in short. I bought a 70 Duster 6Cyl. Dropped in a 340.
Got an 8 3/4 housing with 10inch backing plates, NO Drums, at Carlisle.
Called Mancini and ordered the Large Bolt Pattern Axles 5X4.5 .
Now I need Drums, Large pattern, 10inch.
Kanter tells me that there are 3 different shoe sizes. 2", 2 1/2", 3".
Does the backing plate have anything to do with the shoe size, or is it just the drum it self???
Thanks Again
Pete
The story in short. I bought a 70 Duster 6Cyl. Dropped in a 340.
Got an 8 3/4 housing with 10inch backing plates, NO Drums, at Carlisle.
Called Mancini and ordered the Large Bolt Pattern Axles 5X4.5 .
Now I need Drums, Large pattern, 10inch.
Kanter tells me that there are 3 different shoe sizes. 2", 2 1/2", 3".
Does the backing plate have anything to do with the shoe size, or is it just the drum it self???
Thanks Again
Pete
Jim Lusk
Well-Known Member
The backing plate has everything to do with shoe size. There is also the possibility that there are no shoe/drum combinations that will work with the a-body backing plates, but if there are it is the 10x2".
mopar crazy
Well-Known Member
Is there anyway I can tell what shoe size these backing plates are???
Jim Lusk
Well-Known Member
What did they originally come off of?
mopar crazy
Well-Known Member
Sorry, I don't know what they came off of. I thought there was a way to tell what size shoe would fit....
Jim Lusk
Well-Known Member
Look for a part number stamped into it. Otherwise, you will need to measure the offset between the axle flange and the pads that the shoes ride on. Add to that the axle offset and that should put you in the ballpark., but without a year it may still be tough to get brakes for them.
mopar crazy
Well-Known Member
Jim, Thanks for the help....
So far the only numbers I can find is the wheel cyl. part #'s. 2460668.
Don't know if we can cross that to anything. This weekend I'll sand the plates down and hopefully something will show up...
So far the only numbers I can find is the wheel cyl. part #'s. 2460668.
Don't know if we can cross that to anything. This weekend I'll sand the plates down and hopefully something will show up...
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