It's the same as this one right? 
http://www.latemodelrestoration.com/iwwida.pvx?;item?item_no=M4602G 1&comp=LRS
"Fits 1979-95 Mustang/Capri 5.0L vehicles with T-5/SROD/C-4/A0D, 1979-93 with Tremec transmissions and 7.5" or 8.8" axles. 28 spline yoke"

http://www.latemodelrestoration.com/iwwida.pvx?;item?item_no=M4602G 1&comp=LRS
"Fits 1979-95 Mustang/Capri 5.0L vehicles with T-5/SROD/C-4/A0D, 1979-93 with Tremec transmissions and 7.5" or 8.8" axles. 28 spline yoke"

My stock u-joints had 193,000 miles on it, unless a previous owner replaced them. 
