Like a lot of people with NA I had this problem.
The 87 had a thinner rack bracket on the driver side. There was play with the Nissan bushing and the MFP poly bushing.
Since I already had an extra turbo rack, I ordered Turbo Bracket Bolts and a Turbo Bracket.
The part for the bracket has been superseded and is the same as the thin bracket on my NA.
I scored a early model turbo bracket on the forum, swapped to a turbo rack and installed the poly bushings. When torque down there is zero rack movement.
Not good.