Model z vs. Model d calipers/parts on a '83 gs750t

[ennuii]

Hi Tonners,

I'm a new guy here, just bought my first bike last week! A running suzuki 83 gs750t for pennies. Of course it needs some( read- a lot of) work. I'm trying to get new parts to rebuild the seized front caliper and make it rideable.

I keep running into options on the parts for the calipers. I have to choose between "model d" and "model z"
All of the parts seem to be 1 number off between the two. (ex: 49-0001 and 49-0002) and the pictures are identicle in the diagrams. But I'm not sure where I find out which model I actually have. I know the model year is a D (1983) per the title/VIN, but I would assume that the Z would be the later model 1982, however according to the VIN decoders all over the internet the previous year is a C not a Z. What am I missing?

The choice for model d and z are not limited to brakes, but also some of the transmission and other parts. Anyone have a super spiffy decoder ring I can use? I just got stickers in my cracker jack box -_-

Thanks in advance!
-enn

 

[Big R]

I personally can't help you out. But the good folks over at the GSResources would definitely know the answer.