Hi All, I need to find a rear left hand caliper 4x4 for vented discs as I have a failed hand brake cam in mine (unless someone thinks there is a fix)

I thought I found a pair on ebay but waste of time seller and no goods.

My hand brake is sticking on on that side

the calipers have all new sliders and seals, it is just that the handbrake will not return...could this just be a weak spring?