hls

could you supply some part numbers???

I just converted my 1970 240. Toyota 4x4, 4piston calipers on the front bolt right up and the brake lines needs no mods. Rear 1986 maxima calipers with ebrake. I bought the motor sport auto set up. Was on mid ohio race track full speed (as fast as a 240 could go) great set up! got photos if you want.

Do any of these conversions discussed here make it necessary to trade up to a 15 or 16 inch rim?

Yes, the Modern Motorsports rear disc conversion will not work with 14 inch rims and you need at least 15's. I believe that is the case with many of the others too. It is worth it though IMHO. I did the MM setup on the rear on my '72 and am still running stock on the front and it is light years better than stock.

I had my stock 14" shelby 500 rims on and the brakes are fine

Yes, the Modern Motorsports rear disc conversion will not work with 14 inch rims and you need at least 15's. I believe that is the case with many of the others too. It is worth it though IMHO. I did the MM setup on the rear on my '72 and am still running stock on the front and it is light years better than stock.

And it's purty too! Here's a shot with 15" Konig rewinds.