Stuck differential cover

Is the lsd destined for any particular car Mike? I'm kind of curious because it doesn't seem like a modification you would make on any of your '69 build cars or such a low milage, original '72.

That's a fair question I guess. I plan to keep my HLS30-00032 car completely stock, and since it is such a low VIN I don't really drive it much, after getting it repainted last year. However, I also want at least one car that I can drive and enjoy. I plan to sell my 1972 at some point, so I am leaving that one as is. That leaves my other two 1969 cars, which I plan to restore and upgrade with modifications that can be completely reversed with no damage. For starters, I want five speed transmissions in both, so I obtained two of the early Type-A 5 speeds that many of the other markets received as standard equipment for 1970 and 71 model years. That way I won't have to cut the transmission tunnels or make some funky bent shifter to use and it's completely reversible. After that, I want to have a 3.9 ratio diff to use with the 5 speeds. Any of the R-180/R-190/R-200 differential upgrades can be completely reversed, so I was open to whatever I could find, with a preference for LSDs if I could get them for reasonable prices. I found a rebuilt 3.9 ratio R-190 LSD a year or two ago, so I plan to use that in one car. A couple of months ago I found a 3.9 JDM R180 with an open differential so I got that to use on the other car. Then a couple of weeks ago I found someone local that was about to scrap a 280z that had been left outside for 10 years with a leaking sunroof, etc. It had this Nissan Comp R-200 4.375 LSD so I bought it thinking I would either use it instead of the open R-180 (if I can swap it to a 3.9) or I would sell it. Like I mentioned, I am leaning towards trying to use it now. I have some other period correct reversible mods planned for both cars too, but I'll leave that as a surprise for now.

-Mike