Quoting raptorreed:
The fix was made in 1999, when 7 bolts received revised thrust bearings. Even though that guy has a 95, if the motor is still running fine, there is no reason not to stay 7 bolt and he can always rebuild it. 6 bolts also suffered from crank walk as well.
I thought my car had rust issues, but his make 1350 look good.
the fix wa actually done the end of 97 al 98-99 blocks have the fix. on the car he did good work with the body but did nothin with the bottom end not even a basic rebuild. he is very dedicated but the spray paint is cheesy lol