Resident Steering Wheel Expert......
Yeah, I've got about 20 of them sitting here now. There are a few variations.
Most commonly found are in the FWD 88-89 Regals. You won't find one of these wheels in any car after '89 because of the introduction of Airbags.
The books show them used only until '88, but I have personally pulled at least 5 from '89FWD Regals. I also have found the correct style for 86/87GN and T-Type in the FWD Regal GS's(88 and 89).
They stopped using them in the Riv's after 85. When they changed up the body style, they quit using the sport wheel because of the introduction of the steering wheel controls for cruise or stereo or somethin. Have seen two 86 Riv T-Types and neither had the sport wheel.
The 84/85 hotair cars had the polished spokes and genuine leather wrap, but it went further up the spokes. If you want a correct wheel for 86/87 TR, gotta pull it from any 86T-Type model(except Riv) or from 87T models, or later model FWD Regal GS.
If you don't care about having the leather further up the spokes, then any earlier model T-Type wheel will do, but if you ever recover it, you will find that the spokes have holes drilled in them, so you have to recover them the way pre-86 sport wheels are with the leather over halfway up the spoke, unless you just like having holes in the spokes.
As to the regular ol base model FWD Regals....yes, they are plentiful, but they are not leather wrapped, and the spokes are painted/coated dark gray. You can sand em and polish them, but they will have a smooth finish instead of the correct brushed/"fine-line" finish.
Only good thing about them unless you just don't care about having the correct wheel, is that they all use the same trim ring and cap as the TR's. You can get one from a yard sometimes as little as 5bucks or even free and make a killing off it if it is in half decent shape and free of cracks. The emblem in the middle will be a colored Buick sheild emblem(except GS which has GS logo on it...some Skylark/GS guys are using these...sold a couple at the Nats to a guy that said he would use them as he had mounted sport wheels in his old Skylarks), like the monochrome one on the 85/86GN's. They are worthless, but the trim ring is worth it's weight in gold as they are not made in plastic by anyone.
One further note is that in all the FWD Regals, the plastic backing piece that meets the column WILL NOT work with the 78-87 columns. They are square where-as our columns are round.
It is held on with 3 small bolts and very easy to change, but the problem is that the only one that works was only used with the sport wheels. So even if you do find one of the plentiful wheels from a late model FWD Regal, you have to find an early one just to get the piece that goes on the backside so that it mates with the column...otherwise you will have a big nasty gap inbetween the wheel and the column. So you can see why I have about 20 of them sitting around collecting dust....no one wants one without that piece on the back unless they are replacing the one already on their car and can swap out that part of it. If they do have one and need a replacement for their battered ol sport wheel, they want the correct one with the polished spokes and real leather anyway, so that pretty much leaves the later model sport wheels unwanted, unless it's from a GS and has real leather wrap.
Hope this helps anyone that reads this. I had to retype this twice just to get it down to this "short" of length....sorry to ramble