Brake issue

[earla87]

I have a 1987 1/2 4WD that I have been chasing locked up brakes on.  Never had any issues until I put a 4inch lift on it which was a Rough Country brand.  It has all new stainless hard lines, new rubber lines that came with the lift, new combination block, new calipers and rear drums.  I first had issue after the lift was installed with the right front locking up so put a new rubber line thinking the first one was defective which did nothing so I swapped the caliper with another reman one.  That fixed it for a while then did it again so then I changed everything else but the master cylinder (not an orignal one, been replaced by previous owner). I have taken the line off at the master and still did nothing.  Is there anything else I can try or maybe I have another bad caliper, master cylinder or rubber line?

[bd]

Hello earla87.  Welcome to the site!  Your truck would be an excellant candidate for checking brake application and residual pressures using a gauge, such as the one below...

http://www.summitracing.com/parts/SSB-A1704/

Edit:
Does the offending caliper release if you crack the bleed screw at the caliper?

[bake74]

Does the offending caliper release if you crack the bleed screw at the caliper?

     I second this question, and would start with it also.  Second, does your brake system on the wheel that locks up seem to drag more than the others ?

[earla87]

It does not release when you loosen it.

[bd]

Perform a thorough flush with fresh fluid and make sure the caliper is not binding on the slides; use the special silicone grease for calipers.  If sliding freely, replace the caliper (under warranty if you can), bleed and recheck.

[bake74]

     It is only one side of say the front or back brakes right, not both front or back correct ?

[earla87]

It has only been the drivers front both times.  I had a shop do all the brake work with all new lines, calipers and fluid and have been bled properly.  I would take it to them but trying to save a tow bill.

[bd]

Obvious question... why not call the shop that did the work?  They might be willing to pick up the vehicle at no charge.  Wouldn't hurt to ask them.

[frotosride]

Not trying to point the finger in the wrong direction or saying that it's not your brakes but have you inspected your bearings. The reason I say this is because of the obviouse, old age but also because you said that you put a lift on the truck...rarely do we just lift a truck without adding some meat to fill the fender wells. Larger tires and wheels put more stress on the bearings and when they are old or just never greased you are just a ticking bomb..
Oh and welcome to the site....

[bd]

Hey Froto.  Haven't seen ya for awhile....  Was beginnin to worry.

[frotosride]

Hey Froto.  Haven't seen ya for awhile....  Was beginnin to worry.

Thanks no need to worry I don't drive a Ford...hahaha...seriousely.
Just good old Navy relocating me and not a moment too soon..gear heads aren't ment to be around "normal people" and recruiting was farexceeding those limits of wrench throwing restraint!!!