Okay, I've read a bunch of post, and I'm still confused. Dorman shows one for a 1988 GT...the same part number Rock Auto shows for a 1990 Probe GT, but not a 1990 MX-6 GT?! Other than the whole issue with early 1988 small cranks, shouldn't they all be the same? They are all 2.2 turbo motors. My alternator has gone bad and taken out the harmonic balancer. I've ordered an alternator, but haven't ordered a balancer because...well...it just happened yesterday coming home from work. I haven't talked to Mazda yet, but I really need one sooner than they could possibly get one. It wouldn't be such an issue, but my truck went down so I was driving the car. Now, I'm down to the motorcycle and we've had nothing but rain..LOTS of rain and now cold and maybe snow tomorrow. I don't have a problem riding in rain, but I draw the line at snow or freezing precipitation..