That is good to have. I have a copy of it somewhere. The issue is, if you find an original 28 spline Trak-loc for sale, it's a crap shoot whether it's the newer style with beveled gears, or the older style without. They both have the same part #, IIRC it's M4204-F288.
I bought two off E-bay over a 6 month period, and ended up selling the one for the solid axle to a guy with a Crown Vic.
97 T-Bird LX 4.6 - 80k miles
94 Supra TT Auto - street/strip car
04 CVPI- Brenda's car - 76k miles
95 T-Bird LX 4.6 - fully optioned, owned 15 years, 220k miles
96 Cougar XR-7 4.6- Brenda's car, owned 11 years, 187k miles
88 T-Bird 3.8 - first T-Bird, owned 5 years, 206k miles