I should be getting my car back from the dealer ship Wednesday due to I pulled 2nd gear clean out...lol Thanks to the dealer I am getting a brand new tranny. My question is I am doing the solid swap on the 5th and 6th of June. I am going with 4,56 gears in the rear. What kind of gains will I see going from the IRS to a Solid axle with 4.56's The only other mods are Off road x, borla catback, K&N fipk. I have yet to run the car with these mods but stock I went a 13.26@104.2. What kind of times should I run with the new mods and solid with 4.56's Also dont I need a different cross pin to run the 4.56's? Thanks
