Too much brake pressure
Oct 19, 2003
23 Replies
"DIONYSUS" wrote
The brake option codes are actually "jb" codes. If you no longer have your option code label, you will need to go to a dealership parts counter and see if they can come up with your brake option code based on the serial number of your truck. I can't be sure if this is possible for a 79 vintage truck, but I know it's quite possible on late model trucks. The other option would be to pull the booster and simply have it rebuilt at a qualified place. There are heavy duty shops that have the capabilities to rebuild these boosters.
Ian
/me guesses scrawny 5'11" 135lbs kj doesn't know his own strength
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