All sorted for the time being.will check again one motor is in.
All TRE,s new, so popped off one on steering box pitman arm, then rotate 2 full turns left, 2 left, so found centre and made a mark, where the steering box shaft comes out. Set steering wheel.
Bottom steering relay arm at 90 degs to Track rod (1160mm). steering to relay rod, fitted, Now 623mm as per book, with just a couple of threads showing each end.
String lines set up, and drag link adjusted for 2mm toe on both wheels.
Bolts nipped up, and turned to lock stops both side.
The drag link measured 789mm, 3mm longer than manual. Couple of thread showing on all TRE's now.
Thanks for the comments.
whitehillbilly