Nemero I think you know I have a 3.45 diff in my srt6 also getting one for My V8,,, once i have a spacer made the wavetrac fits and i have had no problem getting into the housing .
I also have a 3.67 diff and a 3.90 diff all of these diffs a in cars doing testing one tester did not like the 3.90 , he replaced it with a 3.45 and is now testing ie as soon as snow melts and his track opens I have that 3.90 with tcu for sale fot $1500 , I have 1800 in building it jim

still under chemo and radiation treatment for my throat but two weeks to go ,,,,ups and downs withit , more downs than ups