48ChevyTruck

Mark just to update you on results of your recommendations: i did as you proposed and filled the cavity with the 50/50 mix of ATF / Acetone. The results are: The control arm has loosened and moves easily . I was able to remove the relief valve plug after applying lost of heat and vise grips. The piston and spring assembly still doesn’t budge. I took an old short socket and cut it so as to allow it to engage in the three slots of the spring/piston and applied rotational movement, no luck either. Looks like I’ll send them to Apple Hydraulics in NY and either exchange ours or have them repair these if possible. I really appreciate your recommendation

Thank you Mark. I have acetone I’ll get the ATF and follow your recommendation and report back.

Ref: 1948 Chevy Truck We just removed the two rear shocks, they were both bone dry (as we suspect the front ones will be.) We performed on vehicle lever movement test and one moved but the other was frozen. We’re been able to clean and test one of them. Inspection of the other one we have not been able to removed the relief valve plug and the spring/piston assemble is stuck in the compressed position. We’ve pounder Rust Blaster into the cavity (cover removed) and let it soak for over 24 hrs. We’ve also poured Rust Oleum rust devolver into the cavity; we’ve heated the shocks housing with heat gum and or small hand held propane torch. We’ve also poured or sprayed brake cleaner or engine cleaner. So, nothing has yet worked to release the pisto/spring assembly. We did have issues with the lever being stuck/frozen but it’s ok now, it moves freely and it’s cam contacts the spring/piston assembly. So, any ideas on how to release the piston/spring assembly and the relief valve plug?