Wow...it seems strange to me also that it's only running 40 mph with 3.73s.
But the speedo read 40 and my girlfriends speedo (driving behind me) said 40. And this isn't my first time building a car or driving something I shift by "ear", and at 40 it was running pretty hard. I will wire a tach up and see what RPMs I'm running.
I replaced the enclosed driveshaft 4.11 rear to avoid this situation.
Thanks for the help. I'll let y'all know how it goes.
I dont see how you can possibly be wound out at 40mph. I have a 3.73 with 15" 235/r60 tires with a 3 speed now and i can do 60mph at 3200rpm i can get it up to 4000 and then she is ready to jump out of the engine bay.
