2002 toyota echo replacing rear brake shoes now drums won't fit

Once you have bled the air from the brake lines,clamp off the front brake hoses carefully.Does the pedal feel better now?
Then the pad /caliper fit is allowing too much play.Is the pedal the same?Then clamp the rear hose and try the pedal.Is it fine with the rear hose clamped?If so we now know the problem is at the rear brakes.One common low pedal rear brake cause is brake shoes that do not fit the drums.Remove the drums and look at the shoes,are they showing contact wear fully or just in the middle of the shoe?Remove a shoe and place it in the drum.Can you rock the shoe against the drum surface?Once drums have been resurfaced,the shoes will not fit fully against the drum allowing the shoe the flex when applying pressure to it and this can easily create a low soft brake pedal. Of course rear brake adjustment must be correct once brake shoe contact is correct.To correct brake shoe contact,have your shoes re arc-ed to fit resurfaced drums or install new drums.Don't overlook brake master cyl /brake pedal push rod adjustment too.

Not fully conversant with this model, but wonder if it's possible you have 'auto-adjusters' fitted, and perhaps you didn't wind them back before fitting the new shoes?

Notice the question ,duh putting drum back ON.Yes I have encounterd this 3times. Make sure e brake is backed off and the adjuster is tripped and shoes are retracted, also if aftermarket shoes had to grind a little off bottom of each shoe where it rests on each side, Next time I used Toyota shoes and new drum. No problem. Seems thatlining is thicker on aftermarket shoes from napa.

take off tire and brake drum you do not have to take off brake shoes remove the four bolts on the back of housing and tap the unit out good luck

No, just back off the adjusters completely before putting on the drums.

Sounds like the shoes are adjusted to far out, adjust the shoes in (closed) until you can fit the drum there should be just a slight drag when you rotate the drum.

The brake shoes need adjusting. Disengage the parking brake.
Before fitting new shoes you should slack off the parking brake cable completely. Locate the adjuster(just follow the parking brake cable. Undo the locknut and slack off the cable.
Remove the rear wheels and drums again. You will find a screw-in type adjuster between the shoes. Turn the adjuster to increase the distance between the shoes. The left and right wheel's adjusters turn in opposite directions to achieve the same result. Fit the drum to see if it slides over the pads easily. Do so until you start having diffyculty sliding the drum over the shoes. Fit the drum and rotate it. You should not hear any scraping or have any resistance on the drum when it is rotated. Refit the wheels. Test the parking brake. If it is still too slack adjust the cable under the car until you when you engage the parking brake it engages fully after 3-5 clicks.

Copy and paste this into your search window: 2002 ford ranger rear brake diagram

You should see four pictures pop up, select the brake parts diagram or the brake picture.

You need to retract the brake shoes, via the center adjuster mechanism. As your old brake wore, the adjuster moved the shoes outward. Simply move the adjuster to retract the shoes, then slide the drum on. Then, readjust the rear shoes.

You need to rotate the starwheel brake adjuster inward, to let the shoes come together. Then, you can slide the drum back on. You will need to readjust the starwheel again, after the drum is on, to obtain the proper position for the new brakes.