On my 1999 wrangler thay list two types of front rotors,a single composit or a double. how do i know witch one i have?

ucan not set the timing! it is controled by the computer as it monitors the crankshaft position sensor.

If the fluid does NOT meet the original fluid specs, then save up for new differential. Otherwise, you should be OK - double check it though. I have no idea what fluid you're thinking of using.

yes but you'll need to replace the harnesses, computers and sensors

biggest concern is bolt pattern for the trans

2.5 engine
Firing order 1.3.4.2
Rotor arm goes clockwise
No 1 cyl front

it could be your brakes , on most brakes there is a wear tab that makes a high pitched squeeling noise when it contacts the rotor. this is in place to let you know your brakes are due for replacement. if it is not your brakes then it could be a wheel bearing.

from sitting in the drivers seat is how left and right are determined

All you have to do is take off your calipers and the rotor will slide right off. Use a C clamp to push the piston of the caliper back in so you can put your new brakes on.

I would do a complete tune up before I did anything else. Some times on chryslers just a bad spark plug can cause a lot of greef. I would start with replacing the plugs (using the bosch platinum plus 2) , wires, distributor cap and rotor. See if this works for you. If not write me back and I can tell you more info..

Also if this doesn't work for you I need to know what motor you have 4 or 6 cylinder engine.

Best thing to do is get on the phone and call an auto parts store and get a price on the parts you want to replace, than bump that up about 10% more or less witch is most likely a shop will do, and then take that and add the labor, witch averages around 60 to 70 bucks per hour at a independent shop and 80 to 100 bucks per hour at a dealer. They will chg. at least 4 hours. remember this is only a gessament and everyone chg. different, but its someware in the ball park. Depending on what the parts cost 500 to 600 dollars is not out of the realm of posabilitys. whole lot cheaper if you do it yourself.

Remove the brake assy. Remove the rotor. Remove the big axle nut. There should be 3 bolts that hold the hub bearing assy in place. Remove those bolts. Tap the hub bearing assy. off. Pull the axle shaft out.