I would try slakening the handbrake adjuster first as it's simple to do, release the handbrake (You will need to anyway) and with the offending wheel in the air rotate it, going by what your describing it will be hard to turn as it's binding!

This is on the passenger side of the car and you need to undo the locking nut first (Nearest the back of the car)

Haynes procedure to adjust it is to mark on the lever and the caliper and then start tighening the cable, just until the lever moves and without the wheel binding, if it does then loosen off a little!

Don't get confused though as the rears are hard to turn due to the LSD but even so you will still notice!

On my recon calipers I still had to wind in a couple of turns!

Martin