Manual track adjustment, no can budge

Get it HOT, the spring is not going to be hurt by heat on the part that bolts to the plate that retains the spring. Also get about a 4' cheater pipe and put on your wrench! When it's hot, try to pump some grease into the fitting on the "nut". Seems like usually the old dry grease is part of the problem, but could be your pinch bolts. Have you smacked that idler yoke with a sledge to shake it loose. Probably won't hurt to heat that too.

I'll give it another try tomorrow, sprayed both good with PB blaster

Mine were so rusted they were past saving ,i had even removed them and put them in a home made furnace until red ,but still no good
in the end i slit one down the length of the adjuster with a petrol cutoff saw , banged some wedges in and managed to get the threaded part out
i then welded the slit back up had the rod turned down and a new thread cut on it ,with a matching boss made up to weld on the front of the adjuster

it has held up with no problems at all 👍

Took 1/2 of the yoke off, heated the end of the pilot many times, lube thru zerk fitting with PB Blaster in a grease gun & spray what I can see, still a PIA w/ 6' pipe. Anybody know how far the threads go in the pilot? I can move it but not a complete round.

Finally got them on the run, tight sum beeches! Done on the left and making good progress on the right.

[img]http://i932.photobucket.com/albums/ad166/MDPete/D4trackadj003_zps90b773f2.jpg[/img]