MONTE CARLO Transmission Tag Code 200R4 Monte Carlo SS 86-87


Rocket Powered Basset Hound
Oct 14, 2008
Gainesville, Fl
If I'm not mistaken, OZ is the Oldsmobile 442 H/O 200-4R code. CZ or CZF would be the Monte Carlo SS code.
  • Like
  • Agree
Reactions: 2 users


G-Body Guru
Jun 19, 2021
Chevy trans 86-88.png
  • Like
Reactions: 2 users


Supporting Member
Jan 2, 2006
OZ is 83-85 Oldsmobile VIN 9 cars only (this is the one you want, it shifts harder). KZF was the 86-87 442 transmissions and while similar, was a tad mushier in the shifts.

Chevy used what the same as Olds designators, except it started with a C instead of the O or K in the associated years, plus Monte SS rolled over their CZF to 88 as well.
  • Like
Reactions: 3 users

GBodyForum is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon, the Amazon logo, AmazonSupply, and the AmazonSupply logo are trademarks of, Inc. or its affiliates.

Please support GBodyForum Sponsors

Classic Truck Consoles Dixie Restoration Depot UMI Performance

Contact [email protected] for info on becoming a sponsor