Land Rover Repair: brakes locked up, pulling a train, master cyl

Question
I have a 1998 Land Rover witch i love greatly.50th Discovery.V8i . I have replaced the master cyl. Calipers in front,Brakes,and all hoses.And had them Bleed.Now while driving my brakes lock up on both sides.At first it was just one side.With out me touching the brakes.I can just be driving down the road and they lock up and its like im pulling a train behind me. Or the land rover wont even move.I can turn of the land rover and restat it and it will go again .and later lock up again.Could you please help me.

Answer
It's possible that there is a workmanship problem with the work you had done.  That's the first place I would look.  If all that checks out, the next possibility is that the antilock brake unit is activating.  I'd lay 9 to 1 odds there is a problem with the installation or adjustment of the pieces you have changed

This should not be a terribly difficult problem for a skilled tech to solve.  If your mechanic is baffled you should perhaps seek out someone better qualified to work on Rovers.