I think that this is an ongoing problem with all KJ Libertys, both CRDs and gassers. I made some phone calls to local auto parts stores and to a couple of stealerships as well. It appears that the CRDs and the gassers all use the same brakes.
I have had problems with both of my CRDs where the handbrake was not applying very firmly, and also not releasing properly; resulting in overheated rear brakes. In both cases there was damage to the backing plate and retaining pins that hold the parking brake hardware in place. I managed to get them repaired without having to go to the dealership to replace the backing plate assemblies, (sold as "assemblies" -- of course... the price per side up here is $550.00 CDN!!).
Unlike a standard drum brake, the backing plates of a disc brake/drum hand brake combination is not nearly as heavy, and are subject to damage/deterioration due to corrosion. They do not need to be as heavy because the braking torque from the rotor is not taken up by the backing plate, but by the caliper and the cast iron arm that the caliper is bolted to. With rear disc brakes that have drum parking brake mechanisms in them, the backing plate merely has to hold in place the parking brake shoes and related hardware.
Apparently the manufacturer does not care that the parking brake will not work properly if the backing plate or pins rot out a few years down the road, or perhaps they DO care because they want you to either...
1) ... spend a ton of money at the parts counter of your local stealership.
2) ... give up and go purchase a new vehicle.
I personally think this was done deliberately by the manufacturer with the knowledge that they would indeed rot out eventually, and the owner would be stuck with a huge repair estimate.
I am looking to address this issue with a permanent direct replacement aftermarket solution, just like I have done with the CRD engine thermostats.
I first need to determine exactly what the situation is in the U.S. regarding rear disc brake backing plates...
1) Are the rear disc brake backing plates for KJ Libertys dealer-only parts?
2) If so, how much are they, and are they sold as an assembly?
If there are only O.E. parts available and they are ridiculously expensive as they are up here in Canada, I need to determine if there is a large enough market to cover the development and machining costs for stamping dies, which will run between $15,000.00 and $30,000.00 CDN. This means I need to find out from LOSTJEEPS Members if there truly is a call for this. The parts I am looking to manufacture would be made of heavier gauge 316 stainless steel. The idea here is to manufacture a permanent solution to the problem of rear backing plates and pins rusting out and causing all kinds of problems with the parking brakes; a heavier gauge 316 stainless steel backing plate and retaining pins should be ticket to accomplish this. I am trying to get a price that is significantly lower than what the dealer charges for an O.E. assembly, and offer the customer a vastly superior product.
Are there still a lot of KJ Liberty owners experiencing rear hand brake problems, and is it enough of an issue for them to consider a high quality aftermarket product?