So in the past few days my '87 has just went from burnout machine, to a gutless piece of cabbage. There is no boost building, maybe 4 PSI max now. the wastegate has been checked with a mityvac and isnt leaking. I checked the turbo and there is a tiny bit of shaft play, but when i spin the compressor with my finger, it just doesnt want to bother. Stops spinning just way too quick. With the engine running, it won't even spin at idle, maybe only for a second. that is pointing towards a bad turbo correct? Should i rebuild it if it is in this condition or should i just opt for a turbo upgrade right now? Also if I were going the rebuild route, which kit is recommended?