Bill
There is some `confusion` over these 4 pot rear calipers with hand brake fitting in that the part number does not show in the Willwood USA catalogue.
I believe they are only available here in NZ and the UK.
Try sending Willwood the picture with your request for information.
I originally went down the seperate `puck` caliper road and quickly thru them out as these appear to be superior and a hell of a lot easier to activate.
They are available in NZ from Cardwell Racing not far from me.
Cheers
Russell
No mention of what diameter wheels anyone is running or anticipating using these with, clearance on a 15" wheel dia. can be a challenge with some calipers.
I am looking for a solution that will work with 15" wheels. think it will need to be an internal hub drum style mechanism for the hand brake. I see that Porsche run handbrakes on alloy hats in some of the cars so should be doable.
Bill, I engineered my brakes around Wilwood 4 Pot fronts and 4 Pot HiSpec handbrake caliper rears.
310mm discs in 15" 3 piece spun aluminium wheels. (Might be less room within a cast or billet wheel) rear brakes