From the OP, you're asking a question that's fairly simple, and you stating that you only had a limited amount of tools makes it seem like you are new to wrenching. If you're a trained mechanic, you should know that you pretty much need to tear down the drums to the backing plate to remove the cable. In short, it's no more difficult than any other drum brake work.
You don't need to tear the brake shoes down. You do need to remove the drums.
(Edit: there are 3 cables for 97 and under and 4 cable on 1998 and up.)
There are 4 cables in total for 1998 and up.
1) release the tension on the ebrake (there is a trick to this, figure this out before you start)
2) cut the cables off. Cut right where they come out of the backing plate.
3) remove the drums. Then remove the remaining cable. You can fish the new cable in easily. Reinstall drums.
4) connect everything all back. It's a little tough connecting the final cables together.
5) release the tension at the ebrake mechanism.
I've done this to 4 or 5 Rangers. Sometimes I replace all 4 cables and sometimes I replace the 2 rears and intermediate. The 2 rears are usually the issue in states with salt and snow.
If your Brakes are locking up when it's raining out it's usually the rear ebrake cables.
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