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Wheel Cylinder too Big for Backing plate?

LoneRanger

Contributor
Sr. Member
Joined
Jun 13, 2007
Messages
560
Loc.
Gunshine State
Wheel cylinder woes........

I believe these are what I need: Wagner WC80186 (left rear)
Wagner WC80187 (right rear) none of my local shops carry that brand. (Autozone and Advanced)

I got the entire kit from WH, the cylinders do not fit in my backing plates. (they are too large!)

According to Toms Offroad: https://tomsoffroad.com/parts/74-75-ford-bronco-10-inch-rear-drum-brake-rebuild-kit

I need the cylinders in that kit. (my backing plate numbers match what he shows) of course they don't say what those are.... %)

Even though there are a load of threads on similar issues ill be danged if I could find a consistent answer. And you all know how this goes, axle was out of a 67' but is going in my 70 and none of that means a damn thing! ;D

L.R. :cool:

edit: according to this page I found: https://www.currieenterprises.com/9-inch-housing-ends-explained I have a late big bearing rearend. (again who cares as if the backing plate was changed that may not mean much?)
 
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Viperwolf1

Contributor
electron whisperer
Joined
Aug 23, 2007
Messages
24,335
Those backing plates are for the '74-'75 medium duty, 10" brake, big bearing axle. Should be RAYBESTOS WC37658 and RAYBESTOS WC37648.
 
OP
OP
LoneRanger

LoneRanger

Contributor
Sr. Member
Joined
Jun 13, 2007
Messages
560
Loc.
Gunshine State
I am guessing that the Car quest Wearever wheel cylider pn: WCA37658 and WCA37648 are the same fitment. Also Napa pn: UP 37658 and UP 37648. As well as O'Reilly's Brake Best pn: WC37658 and WC37648

Trying to track these down today.

L.R.
 
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