H2b is deffently the best route but it is a little pricey. I have both lol. One with a stock h series tranny (runs pretty good lol) and one thats being built h2b as we speak. I have never realy had that many problems shifting the h series tranys and no problems with axle bind or poping out. Im also using the cheap 69 dollar ebay mounts no problems lol. The problem is that its not a cut and dry swap you have to cut things and drill holes and mount shift linkage were as with the h2b kit besides making a wiring harness is pretty cut and dry. Also you get better gearing and less drive train loss through the b series tranny . I will cost more but like stated you will be happier in the end . Normaly going h2b shaves half a second off your time that is worth the 750 dollars any day of the week. post a build thread and anybody on here will be glad to help you figure out anything you need to.