Subaru noise in driveline - Legacy Subaru Cars & Trucks

Are all 4 tires and wheels the same size??? (will bind the driveline up)

You could have a bad differential or transfer case.

Jack up all 4 wheels, spin one rear wheel with it in gear, the other should spin in the opposite direction, do the same for the front. If they spin OK, take it out of gear, now spin BOTH rear wheels, if they won't, you might have a bad transfer case.

replace the warped disc rotors , check/ replace the front wheel bearings

Sounds like unjoints in the shafts.

A two wheel drive ranger does not have any c.v. Joints. It does have u joints in the rear drive shaft. Worn out u joints can cause vibrations at highway speeds, squeezing noises at low speeds, and in some cases a clunking noise when the transmiissin is placed in park or drive. You can check them by pulling the drive shaft and ratting the joint. If it is stiff or loose than they are likely bad. Let me know if you have any questions and I'll do my best to answer them. Thank you for using FixYa.com!

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

try a used one from a salvage yard?

have the center bearing in the drive shaft checked, cold weather can even sound like a faint siren like a cop is pullin ya over, ....
front wheel bearings are somewhat common also

first i wound check for mud build up on the inside of the wheels

At 21 years old it is important to look at the value of the vehicle and the ability to acquire used parts. If you are replacing the rear end you may be looking at big money if you had to tap the new market ..it could be terribly expensive. Look at things like body rust and engine health before diving into a major expense.

That's where I'd go first. check with driveline unloaded (neutral with wheels off the ground.)

I had similar problem with my '99 outback. Replaced the front half shafts and seemed much better. A few months later seemed to be comming back so replaced the driver side shaft again and the problem disappeared. I had put in rebuilt shafts and the driver side shaft was not rebuilt correctly.