^^^^^^
Interesting, I didn't know that there were 2 versions available for the Isf from TRD.

I wonder if either type can be rebuilt or or revalved?

 

http://trdparts.jp/lexus/isf_ccsp.html

I think that's the $1M question (at least in my mind) and an inherent risk I took, considering these are used. There doesn't seem to be any discerning part numbers or branding indicating who manufactures these. Hopefully I won't have to find out for several years!

 

It's easy to forget that dampers are wear items.

I purchased some used TRD branded coilovers for my SW20 Mr2 back in 2005. The dampers in those were single adjustable Tokikos which were completely used up, and the springs were too rusted to use even if I had wanted to. At least I hadn't paid too much. I salvaged the housings, and currently run 'em with double-adjustable Koni inserts, Ground control springs, and custom top hats.