Snips for clarifying
Hm, I'm not convinced that's entirely true. I was under the impression (always possibly mistaken) that any tow pack Fleetwood got the GM G80 posi option regardless of gear ratio (they ran a few different ones depending on year and exact tow package option) or the traction control system. I know this has been discussed on here before, and I may have been one of the ones asking about it,
I thought since livery and security Cadys were the only ones that came with the larger ring rear that they could qualify for the then standard (crap) Auburn 'non-rebuildable' type cone LSD. Any word on here over the years that a normal 8.5 rear (which all came with TC) could be optioned with a GM oem LSD woulda' jumped out at me. But would love to be provedend wrong.
but I know at least a few have reported that they've installed aftermarket LSD's (ie - detroit eaton trutrac) with no issue from the traction control system. If you leave it on, it'll engage as normal in slippery conditions or copious use of the throttle, and if my understanding is correct, you'll still be sending power to both wheels via the LSD, just less of it when the system activates. Whereas if you disable the system with either the button in the glove box or just completely delete the system, then you just have the LSD like any other car with one.
I just googled that unit and by golly it's a gear locker. It's a damn fine looking one and perhaps neater design than my old Torson Powertrax, but it's a gear locker just as I referenced. A gear locker in an open carrier Cady rear will work with the TC/ABS. Flipping the TC switch does eliminate the nuisance (and potentially dangerous) 1/2-second lag kicking in.
\'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)
\'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, wait for it... LT-4 knock module!