Seized brakes

[Wilsonprotege1]

I just got my m998 and the brakes appear to be seized. To this point I have flushed the brake system and ensured it was properly vented. Is there anything else that I can try prior to buying new calipers? Is a caliper rebuild easy? Can anyone recommend a good parts shop for these trucks? Thanks in advance for the help!!

 

[papakb]

The front calipers are really inexpensive (<$30) from almost any auto parts store and generally aren't worth rebuilding.

Napa # SDC2421008 for the right front (87 Eagle Wagon)
Napa # SDC2421009 for the left front (87 Eagle Wagon) $13.00 Each

AMG 05579865 Front Caliper Rebuild Kit (2-calipers, no bleeder) $16.82-
AMG 05744403 Rear Caliper Rebuild Kit (1-caliper no bleeder) $15.62-
AMG 05578802 Caliper Bleeder Valve $0.65-
AMG 05597172 Caliper Bleeder Valve Cap $0.48-
AMG 05744405 Rear Caliper Rebuild Kit $37.80

Cardone 184181/184182. Unloaded Front calipers, reman. Metal Piston.
Cardone 154181/154182 Front Caliper with Severe Duty pad, reman. Metal Piston
Cardone 164181/164182 Front Caliper with standard duty pad, reman. Metal Piston

Raybestos FRC4147/FRC4148 or RC4147/RC4148 Front Caliper with pad. Reman.
Bendix 55266/55267 Front Caliper Reman.

The original rears are also fairly cheap unless you have the dual pull Wildwood calipers. Here's a posting about them:

http://www.hummerknowledgebase.com/brakes/rebuilding_rear_calipers.pdf

 

[Action]

open each bleed screw and see if fluid rushes out. If it does, and that caliper frees up, the problem is elsewhere.

 

[86humv]

I just got my m998 and the brakes appear to be seized. To this point I have flushed the brake system and ensured it was properly vented. Is there anything else that I can try prior to buying new calipers? Is a caliper rebuild easy? Can anyone recommend a good parts shop for these trucks? Thanks in advance for the help!!

Try what action says and if you find you need new ones...PM me.