Since the mandate of the dt3 in usac i know for a fact the tire bill's have gone down a small percent. The work that goes into the tire have went up. Secondly I have witnessed a all steel 360 with an rd12 rr outrun an gb2300 head wesmar with a dt3 on more than one occasion at rockrapid iowa. On another wim (hearsay) the 53car runs small engines cubic inch wise. you will never convince me it takes a bigger (than 410) engine to run the same laptime time (wingless). with a dt3 until you change the laws of physics. If you have ever felt the tires spin after being hooked up it feels like someone just through out an anchor the harder you spin'm the more you feel the car slow down. What "new" rearend has two side bells? just seen new dmi and winters both including the mini winters. Did not see a franklin though. How would you take a lefty rear apart if the side bell is on the left side? I dont see how you could clear the pinion with the ring gear.