Why even with new brake parts in the front and rear on my 2995 Ford f150 2wd truck would front brakes work but not back ? I even put truck on bay lift and hit the brakes and rear just kept spinning.

Question edited for clarity, year, maker model.
Question moved to sub category.

It may be the balance unit that puts more braking power on the front wheels but that is a funny crisscross mix. If your brakes have ABS they need bleeding using a pressurized system that pushes fluid into the cylinder bleed valve up to the reservoir in the engine bay.

Help in the link

https://www.google.com/search?q=2007+Ford+Focus.+Bleeding+brakes

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Take it back.

If the brakes are making a clicking sound when the brake is applied, that means that something may not have been put back together right. I would definitely yank it back apart and check to make sure that the brake pads fit securely in the brackets with no play at all, too. It's easy to get the wrong pads for a Sport Trac; the parts are completely unique and a lot of parts stores even have incorrect listings for brake and suspension parts for those things. Brake system wear can create a grinding, pulsing, or squealing sound, but shouldn't produce a click. Something isn't right there!

check around as some sedans have the same rear brake setups as the f100. Cruise the wreckers (ford specialists) with your backing plate and find a backing plate same as yours from any sedan around the same year as yours.. Brake capacity is calculated on vehicle weight and as manufacturers are reluctant to spend money on developing new brake systems they tend to use the same parts on as many different models as possible.. Another thought car manufacturers use brake systems built by brake specialists like Bendix and Ferrodo and others so check other makes (dodge,chrylser even the chev range for a possible match of brake assemblies in that year.

normally, you replace the rear brake pads every other change in the front brake pads. for your case, it seems that the front brakes are the only ones working.

bleed your brakes to check if rear brakes are still working. after bleeding, check your brake master if it puts pressure equally to the 4 brakes.

have you checked the rear brake rotors/drums for being warped ??
normally vibrations while braking are.. through the steering wh = front
thruogh brake pedal/seat = rear

good luck

have the break fluid inspected. It may need replacing. While at it you may want to have the brake master (the one attached to the firewall in the engine bay) and the brake cables. Have the brake system bled to ensure air and dirt is removed.

Time for a brake Job? Drive a small cheap car hard and you can run the brakes off quick. Real brakes come with real cars and these light cars have small brakes and if run hard or two footed can wear out quickly. Light niose can be rust wiped off the rotor after parked awhile then driven. Some brake rotors are different alloy and rust more than others and even a car just like yours might not do it. If the inspection doesnt find loose or broken brake parts cooked or craked, rim and tire problems can make noise move the tire to the back and the rear on the front run again to see if the problem moves to the rear. replace the broken parts and try again

here is a 96 taurus


Item Part Number Description 1 2C296 Anti-Lock Brake Tube 2 2C219 Anti-Lock Brake Module 3 2005 Power Brake Booster 4 2263 Front Brake Tube 5 2B091 Brake Pressure Control Valve 6 2140 Brake Master Cylinder 7 2B547 Brake Load Sensor Proportioning Valve 8 N802191-S60 Bolt 9 2L568 RH Rear Brake Tube 10 2L569 LH Rear Brake Tube 11 2C287 Brake Fluid Distributor Tube 12 N808531-S301 Bolt 13 — Front Side Member 14 N802324-S56 Bolt 15 18124 Front Shock Absorber 16 2B121 Front Disc Brake Caliper 17 2078 Front Brake Hose 18 2264 Front Brake Tube 19 2553 Rear Disc Brake Caliper 20 2A442 Rear Wheel Brake Hose 21 N808728-S60 Bolt 22 — Side Rail 23 N802324-S60 Bolt
Brake Load Sensor Proportioning Valve


Item Part Number Description 1 2B547 Brake Load Sensor Proportioning Valve 2 — Body 3 N802191-S56 Bolt (2 Req'd) 4 2L568 Brake Tube Assy 5 2L569 Brake Tube Assy 6 2265 Brake Tube Assy 7 2B255 Brake Tube Assy 8 5500 Rear Suspension Arm and Bushing 9 W611634-S301 Bolt A — Tighten to 11.4-15.6 Nm
(8-12 Lb-Ft) B — Tighten to 10-14 Nm (7-10 Lb-Ft)

Brake Hose, Rear —Drum


Item Part Number Description 1 — Rear Side Rail 2 2L569 Rear Brake Tube 3 N602324-S60 Screw 4 N611193-S60 Screw 5 2C023 Left Hand Rear Hose and Connector 6 2210 Rear Drum Brake Backing Plate 7 18125 Rear Shock Absorber 8 2267 Rear Brake Tube A — Tighten to 16-20 Nm (12-15 Lb-Ft)

I had a similar problem with the front disc brakes .... had to replace the calipers. In high corrosive conditions the pistons on the calipers can become contaminated and not operate smoothly ... they stick. The same thing can happen to the wheel cylinders on the rear. Try replacing the wheel cylinders on the rear (fairly cheep fix) and if that fixes them then the calipers would be next. Jim