LSD install for my 86 lincoln

[stratfellow3]

okay so on summitracing says a Ford racing traction-lok matches an 8.8" rear /w 28spline is that the correct rearend for 86 continental?
http://store.summitracing.com/partdetail.asp?autofilter=1&part=FMS-M-4204-F288&N=115&autoview=sku

what other cheaper solution as in what are some cars i could pull an LSD out of?