I'm not sure many realize the reason Ford "took over" Shelby production in the first place. The five year multi million "loan" became due and SAI was "absorbed in lieu of payment" according to a document I saw years ago. "Other people's money" is the only way SAI happened. Still happens everyday in professional racing. The expenses never equal the purse IF you win EVERY race.
They took over much more than production at the end of 1967. Ford got everything including real and intellectual property, trademarks - COBRA, GT350, GT500, etc. Shelby Racing was created to continue but Shelby American the car manufacturing company ceased operation for all intents and purposes. CS forgot the initial details of his Ford deal when he sued them for bringing out a GT350 in 1984.
When the Mustang turned 20 in 1984 Ford rolled out 5,260 Oxford White special editions. It was a GT with a twist, they called it GT350.
Available in either hatchback or convertible, all cars came with Canyon Red sports interior plus the optional sport buckets inside. Outside they wore special 20th anniversary Tri-bars, a rocker stripe that matched the interior and the TRX wheel pack.
Ford offered shoppers the choice of three motors, a carbureted 5.0 (paired with the stick), an CFI 5.0 (slower and slushbox only) or the original 2.3L 4 cylinder turbo. The 5.0 with manual trans made 175 horsepower and 245 lb-ft of torque. The turbo-four made identical 175 horsepower but less torque at 210 lb-ft. The CFI 5.0 was rated at 165 hp. Supposedly there were only ever 350 of these produced with the turbo 4.