Originally Posted by
n.c.trigerhappy
Thanx man. I've had 1-x1, 1-x1x, and now an x2 truggy. I put CRAZY miles on both of the first two with no problem. I used 1 shim on the spider gears. The x2 calls for 2 shims---I did and they were chewed-up a little within 5,6 gallons. I've replaced now with (the original formula) 1 shim............we'll see!
btw, jammins aren't really out-dated imo. mine's 9.25 lbs. and same wheel-base as most "new-breeds".
it will strip with one shim, i learned the hard way. i forgot to add the extra sim to my rear diff and it went quick. and i guy at my local track learned the hard way 8 times! but you can always put kyosho diffs in them. the kyosho ones are harder steal and wear less. i also think HB are the same also.
you can get away with 1 shim in the buggy but after about 3-4 gallons it will go too. it went on me in the second qualifier once i went from 3k to 2k weight diff oil in the rear.