> I'm just beginning the rear axle rebuild on my 63 TR4. I notice
> it has two
> different wheel cylinders - one slotted and one not. Both are 0.75 dia,
> but that's about the only commonality between sides, so I've decided to
> replace 'em both.
>
> Seems to me that slotted pistons are better than flat-topped - less
> opportunity for the brake shoes to shift. What say y'all?
I believe the slotted pistons were used by the factory only on the TR3
brakes that didn't have positive hold-downs. If your TR4 has the 'nail'
shoe hold-downs (as it should), then I believe either style piston will work
fine. The slotted ones are quite a bit more expensive, if they're even
still available.
Randall
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