i have alot of mods on my sled...put two more on this weekend...the bdx steering post slop eliminator...a very good and effective mod..if you are doing an o7 with mechanical reverse..well just rip the console out around that nasty little bolt next to the mechanical reverse motor and that way it goes smoother and you don;t have to remove the reverse motor and you have lots of support for the console anyway...but yep the differance is night and day with that bdx mod....and the other one is the Fastlane 9 inch two wheel kit...very very nice,just wish the bearings were;nt chinese ..but a very good quality kit..and the adjusters have to be moved to the inside..and i had to cut about two inches off the adjuster bolts and toss the black spacer..i have the timbersled skid with the rear shock mt back abit further but it all fit with half an inch to spare...i have the 141 so should be lots of room in the longer tracks...but yep the Fastlane is quality...one thing that is a life saver is the Timbersled rear skid...just so awesome...out and back in the sled in approx 20 mins all by myself..no fighting with it...soooo smooth..cant wait to get the front Barkbuster soon