what do I need to retain ABS?
Don't try - it just won't work. Completely DIFFERENT ABS systems between the B- and D-body. Search will explain all.
what hitch fit the Fleetwoods.
Regular B-body sedan will fit.
Is a TransGo-HD2 worth the effort? I was planning on dropping the temp so the secondary fan kicks on earlier and then I don't need to convert to mechanical.
While of course not the same as all the internal work of a Trans-Go, considering your low miles you can get programming done quite easy to increase line pressures-shift points-lowered fan temps.
Most all B- suspension will fit under a D-.
\'96SS SOB: SSRI, Herter Tune, Tri-Y II, , 3000 Edge, F/HO bars, METCO extendeds with CV MMC, Bilsteins, currently Vredestein Ultrac Sessanta (315/35 rear). Finally, wait for it... LT-4 knock module!
\'96FWB BUW-Butt Ugly White: PCMPerformance tune, HDFA w/ swissed filter, 1/2 SLP s.s. catback with H- and Flow Super 50s, oem opti rebuilt 3 times, SS Bars, METCO LCA, Airlift 1000, Monroe SS, PowerTrax No-Slip, CTS wheels with +1 rubber. Finally, yes again... LT-4 knock module!