Hmm, found this....
Body Style Housing Width
64-67 Chevelle....... 54.250"
68-72 Chevelle....... 55.250"
67-69 Camaro........ 54.250"
62-67 Chevy II........ 52.125"
70-81 Camaro........ 55.375"
82-92 Camaro........ 55.750"
93-up Camaro........ 59.250"
68-76 Nova............ 54.250"
78-88 A/G Body..... 52.125"
Edit#2:
94-98 Mustang 8.8 5-lug - 60.75”... hmmmmm
so now i just need an answer about the LCA locations....
also came across this site, pretty cool for reference if anyone is ever looking... http://www.1stgencamaro.net/frame.htm