Factory backing plates pinching wheel cylinder boots

[urchinhead]

I am re-assembling the 9 3/8” rear in my 1970, and found some NOS Ford/Kelsey Hayes wheel cylinders. Just like the cheap ones I tossed, the tabs on the backing plate pinch the rubber caps on the wheel cylinders. Is there anything wrong with this set-up?

F100 Wheel Cylinder Fitment.jpg

[urchinhead]

Photo added, and here are the part boxes in case these look familiar. Master parts catalog lists these as superseding the original part numbers.

F100 Wheel Cylinder Part Numbers.jpg

[sargentrs]

I wouldn't think that would cause any problems. As long as it's not interfering with the plunger it oughta be fine.

[sparky72]

It doesn’t really seem like it’s possible to install a cylinder there without it touching the boots. The tabs are probably there as extra insurance to hold the boots on, I’m guessing.

[chriscris]

That's a normal fit. The tabs attempt to keep the pistons in the cylinder if adjustment is WAY out

[1972hiboy]

[urchinhead]

Thank you for the feedback! I’ll have the brakes back together soon, but I’m now waiting for custom axles to arrive after finding out the bearings for the larger 9 3/8” axle ends are recently obsolete . . .