Two problems related to driveshaft have been reported for the 1999 Mazda B3000. The most recently reported issues are listed below.
The driveshaft or clutch unit has a loud popping noise as I come out of reverse and shift into 1st. Sometimes it is loud enough to sound like a u-joint but I have checked them. Mechanic at a dealership told me the driveshft has a sleeve on it and this is what I am hearing. But I am not convinced this is the problem.
The drivetrain of my truck seems to have slack in it. When I slow to a stop it "clunks". When I accelerate away from a stop it "clunks" back in the opposite direction. I took it to diamnod Mazda and they changed part of the drive shaft and that corrected it for a few weeks but it is back to doing it now. I called back and they said they could not fix it? I contacted Mazda customer service and they said they knew about the problem but did not have a fix. They do not appear to be too concerned about the problem. I would give them back the truck under the lemon law since it has been to the shop 3 times for the same issue and it is not resolved but the laws in louisiana are not in my best interest.