Brake question inside

[mdregister]

How doI determine which brake set-up I have on my K20 suburban?? I see references to several brake systems with the codes JD5, JD7 etc. I can not locate a service parts tag, and the sticker in the glove box has no brake code.

I need a new front left caliper (the bleeder screw has been wrung off) and a new master cylinder (I think my seals are shot).

Speaking of brakes, how full of fluid should the master cylider be?


Thanks,
Mike

[CleviteKid]

From the GM Shop Manual, for Diesel Engine Vehicles:

Model.......Front Disc.............Rear Drums

JD3------11.86" x 1.29"------11.00" x 2"
JD5------11.86" x 1.29"------11.15" x 2.75"
JD6------12.50" x 1.28"------11.15" x 2.75"
JD7------12.50" x 1.28"------13.00" x 2.50"

Get out your tape measure and see if this helps.

Dr. Lee :cool: