tabdoo16-
I put my 49 on an S10 but I didn't have a good original chassis to start with. I'm happy with the S10; PS and PB. I rebuilt the S10 front end because it was an 85 and I wanted everything to be in good shape. I have a buddy who is building a 51 with the Mustang II so I'll be able to compare in the future sometime. It is my daily driver with a 350/350 but I plan to change the tranny to a 200R for overdrive. Good luck with yours.