Well i went with 410s torq-line insted of 373s reading some threads help me change my mind...Its going in the shop on the 25th while its apart should i go ahead and change out the traction loc allso its a 93 vert with 78,000 miles is it worth the money? is the low end FRP a good choice and i have to ask i can use a 31 splin T/L with 30 splin gears right ...THANKS FOR THE HELP