Resubmit question describing what is happenign or not happening. This question is too broad.
if slave cylander is bad, it must be replaced to fix it
The rear brakes on a 1989 jeep should be self adjusting. Tear the drums off and fix the seized or broken hardware.
Windshield wipers not turning off is not a common problem in the 1997 Jeep Wrangler. Remove the windshield wiper fuse to turn them off.
how do you fix timing on wipers 2000 buick regal
your shift lever bushings are bad, easy fix.
A big fat needle, and some waxed string or thread.
To fix the speedometer on your Jeep Comanche, start by checking the speedometer cable for any signs of damage or disconnection. If the cable is intact, inspect the speedometer itself for any internal issues or wear. You may also want to examine the vehicle's transmission output shaft for the speedometer gear, ensuring it is properly installed and functioning. If necessary, replace the speedometer cable or the speedometer unit itself to restore proper functionality.
Can't be answered unless you explain what the are or are not doing. Please re-submit more descriptive question.
Windshield wipers don't have fuses
Check battery terminals for corrosion. If so, clean them.
change them
It would depend on what is wrong with them and what vehicle you have.