How do i take the rear end driveshaft off of an awd 1993 subaru legacy

SOURCE: subaru problem

fuse for fuel pump , also air flow metre has it got petrol

SOURCE: 1993 Subaru Legacy Wagon: Bumpy Brakes

Your '93 Legacy was one of the first cars to provide ABS as standard. If your ABS is activating, you'll feel a fast pulsing feel when braking, is that what you experience? 
If it's more of a brake pedal movement that changes frequency with the cars change of speed, and when moving slowly it feels slower and more pronounced, you likely have a warped rotor. 
An ABS issue should be checked out by a Subaru mechanic. If it's the rotor, then the offending rotor will have to be machined or replaced. If you can identify the rotor that's warped (with the car on stands, rig up a steel ruler so that it touches the rotor, and spin the wheel by hand. If it touches intermittently, then the rotor is warped) you may be able to remove it yourself (buy a workshop manual for instructions) and bring it to a brake shop and have it machined. This is far cheaper than they doing the whole job. 
However, if you're not comfortable with these suggestions, then have a brake shop do it for you. This is an important safety device (obviously) and worth the money to have it done correctly. Early Legacy's are pretty much bullet-proof and last forever, so the investment will be worthwhile.
Hope this helps.

SOURCE: !993 subaru legacy doors dont unlock

If it takes that much force to manually open the doors, and it's on the doors that are less used, then I'd bet it's a set of door locks and actuators in need of lubrication. 
Electric door lock actuators can easily be stopped or slowed down by resistance in the mechanism. This can be caused by corrosion, water getting into the door, and just old age and lack of use. I'd take the door panels off and take a peek. 
On the Legacy the panels pop off fairly easily. You'll need to pry them off carefully with a flat screwdriver. You'll feel where the fasteners are, where the panels are resisting coming off, and prise the panel gently and firmly at these points and they'll pop out. Once out you'll see the lock mechanism. 
Moving it by hand will tell if it's corroded or bound up. Apply some white litium grease to the mechanism, making sure to squirt/work it in, and then work the door handle/mechanism to get the lube into the linkage and actuators. Check the electrical contacts for corrosion while there and spray with WD-40 to protect them. This should free up the door mechanism and the actuators should then be able to do their job.
If after the above steps the electric actuators still don't work, use a voltmeter or circuit tester to check for 12V at the actuator when the door button is pressed. If you don't see any power, recheck that fuse and then the wiring back to the door harness. It's unlikely that this is the cause as its unlikely that you'd get only 3 out of 4 bad, but you never know in these old cars.
Hope this helps.

SOURCE: subaru legacy wagon

This problem is usually caused when the transfer solenoid/valve assembly goes bad, it's located in the transmission extension housing & needs to be replaced. it can be done without removing the transmission.

SOURCE: can i tow 94 subaru legacy awd with a tow dolly

Not true. If you have the fuse in place to disconnect the rear wheels it is safe to tow on a dolly. Subaru recommends not more than 40 MPH and only for short distance if it is an automatic. Manual may be towed longer distance. Have a great day.