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  1. What Brake System Do I Have? '89 - GM Truck Club Forum

    Oct 26, 2013 · Looking on the Autozone site for calipers since the two bleeder screws are pretty rusted / fused into the caliper I am given a JB7, JD7 or a JB5, JD5 system. Any idea on how I …

  2. Interchangability of master cylinders/brake boosters

    Nov 21, 2010 · The JB7 RPO code stands for JB7 : BRAKE, POWER, DISC, DRUM 8400 L85. There is a RPO code with a higher rating, the JB8, listed as JB8 : 8RAKE, POWER, DISC, …

  3. Brake power booster difference... | GM Truck Club Forum

    Mar 16, 2012 · Hey everyone, I've got some problems with my brake power booster on my '99 Suburban, I have a '96 truck to take parts from but the part numbers are obviously different, …

  4. Squishy Brakes 1997 chevy 1500 express - GM Truck Club Forum

    Aug 20, 2021 · JB5 JB6 JB7 JB8 Size Thread Hello, After hours of looking around i can't find a thread that list all the sizes of the various brake components of JB style brakes.

  5. Brake Drum Size - GM Truck Club Forum

    Jun 10, 2009 · Without removing the rear wheel is there a way to tell whether I have 10" or 11" drums? My VIN is 1GCEK14R2VE205747.

  6. Speakers quit working - GM Truck Club Forum

    Apr 6, 2012 · All of them except for the 2 tweeters on the pillars.... worked fine when I parked last night. This morning, nothing. Any ideas? Is there a fuse? HELP please! :)

  7. Parasitic Power Drain, tracking it down | GM Truck Club Forum

    Oct 31, 2012 · 2001 Tahoe LT Battery dropping dead. Tracked it thus far...222 milliamp current draw is constant even after several hours. If I pull the 10 amp TBC fuse or just disconnect the …

  8. Nav Update Questions - GM Truck Club Forum

    Feb 24, 2016 · I just purchased a 2012 Suburban 1500 LTZ. The suspect the Nav database was never updated. On the Menu>Nav>Map Database Information the following is displayed …

  9. Gauges not working - GM Truck Club Forum

    Dec 22, 2019 · Hello Everyone. It's been a while since I've posted on here, but I need some help. I lost all guages on my 2004 3\\4 ton Suburban. I went to work in the morning. and everything …

  10. Heated seat wiring - GM Truck Club Forum

    Dec 18, 2013 · Driver's side isn't heating. Passenger's works fine. Switch lights up when you press it. Anyone know which of the maze of wires under the seat is for the heat?