Jim,
Its pretty much a stock truck. I did the chevy leaf spring swap and the shocks are just FOX 2.0 resevoirs...no bypass involved. Like u said, bypass isn't allowed in the class I'm running.
However there is a XJ in my class that's running FOX shocks off of a Raptor...incase u didn't know those are bypass shocks. I'm not sure how he is getting away with that, but I don't wanna be a snitch so I'm gonna let it slide.
My shcoks started off life as 10" stravel and I converted them to 6.5" and 14". I left the stock rear shocks on it to act as limit straps and bump stops.
I guess my truck is pretty far from extreme but it works for me. We just got done with our second race and I did rather bad.
We threw the serp belt and lost PS which put me in some trees where I ripped a mirror off. Put the belt back on with no tools...prettty sure the tensioner is shot. Got strapped back in and never realized the left rear was flat. Stopped and had to put the spare on the front and moved the front to the rear...the spare interfers with the rear shocks.
Threw the belt about 4 more times in 1.5 laps and just waited in front of the finish line to collect points. The counted me as a DNF...I'm contesting that one.
It you wanna ask some more specific questions ill be glad to answer them but like I sad its pretty much a stock truck with good shocks