First of all great customer service! Preordered the 310 got it early morning on the 7th. Ordered the TCM with new 310,275, & 210 on the 10th received it on the 11th
Before the TCM I thought the 275 shifts were hard and sort of jerky, after the TCM 1 to 2nd shifts perfect almost like the 210, 2nd to 3rd quick & firm shift not jolting like before, 3rd to 4th is now firmed up and feels good, lockup is at 45-48 MPH pulls good and much smoother dosen't have that boggish feel it sometimes had before if you mash the pedal while crusing with it locked. Its so smooth it has a little less seat of the pants feel. Mixed driving on a tank was 14.5 mpg
Is just nasty power! After the TCM, shifts are still firm but not jerky its still learning as I haven't put any WOT runs on it yet. lock up is arond 45 and pulls like crazy! I put all highway miles on it between 75-85 mph on a 200 mile run, topped it off and got 17.6 MPG! (hand calculated on both)
I would say def. worth the money for the overall driveabilty plus extra protection on the tranny!