Gretsch
SILVER Star
So I did what I hate doing and had a shop replace my rear brakes along with some other things on my '84. New rear axle bearings, new shoes, new drums, new wheel cylinders and hardware. Life has recently got in the way of doing work on my Cruiser myself so in an effort to avoid the neglect that so often comes with owning one of these beasts, I just had a highly recommended shop do the work for me. Since getting the truck back, I am getting periodic pulsing pedal when and depending on speed some fairly intense vibrations applying the brakes. This was not there at all before this work and all that's changed is the rear axle work done on this truck. I am pretty sure the pulsing is due to the new drums being out of round somehow from the factory. But wanted to throw this out to the hive mind and see if it could be something else going on (bent axle, poorly adjusted rear brakes, etc.). The parking brake does not really work any better than it did before this work. The shop told me my brake booster needed replacing (likely original). I have experienced issues with boost when its cold out. Found a split hose supplying vacuum to the booster so replaced that and I think I am good there now. Shop recommended a new master as well but I have good pedal and its not leaking so opted out of that one. Not saying its not required but I'll replace that myself at some point.
So is there some kind of 'bed in' period where the new drums and shoes need time to mate up? Or is this likely just a simple adjustment mistake. Can an intermittent or failing booster cause something like this? I have admittedly not pulled this apart yet to see what's going on. I think getting new drums and having them not be totally round from the factory is a real thing. But wanted to extend this to the good folks here to get some thoughts. I don't feel the vibes in the steering wheel really. Its more in the seat so pretty sure the pulsing is coming from the rear and not the front. ITs mostly on hard braking this happens. I did recently replace my front calipers and rotors with parts from CruiserOutfitters but they have been on for months now and really no issues before this work. I reached out to the shop with messages and Emails asking them about this but so far they have not returned my queries. Thanks in advance for any help here.
So is there some kind of 'bed in' period where the new drums and shoes need time to mate up? Or is this likely just a simple adjustment mistake. Can an intermittent or failing booster cause something like this? I have admittedly not pulled this apart yet to see what's going on. I think getting new drums and having them not be totally round from the factory is a real thing. But wanted to extend this to the good folks here to get some thoughts. I don't feel the vibes in the steering wheel really. Its more in the seat so pretty sure the pulsing is coming from the rear and not the front. ITs mostly on hard braking this happens. I did recently replace my front calipers and rotors with parts from CruiserOutfitters but they have been on for months now and really no issues before this work. I reached out to the shop with messages and Emails asking them about this but so far they have not returned my queries. Thanks in advance for any help here.