Thanks again viperguy! I know you've been kind of watching this build. It has come a long ways from the crap it started out as!
Backwoods, I have not noticed any kind of flex in the tunnel extension. Even sitting on the sled with it up on the track stand (I'm 195 lbs. fully dressed). It's held up really well over the last season or so that it's been on there. It's all 2x2x1/8 aluminum and the grab bar is solid 1" aluminum round bar. It's pretty damn rigid! Also opens up tons of uptions for bolting a rack on without having to worry about bolts pulling through. The best part is, if you wreck it, you can go to any metal supplier and make a new one in just under an hour for less than the cost of a prefabbed extension.
Backwoods, I have not noticed any kind of flex in the tunnel extension. Even sitting on the sled with it up on the track stand (I'm 195 lbs. fully dressed). It's held up really well over the last season or so that it's been on there. It's all 2x2x1/8 aluminum and the grab bar is solid 1" aluminum round bar. It's pretty damn rigid! Also opens up tons of uptions for bolting a rack on without having to worry about bolts pulling through. The best part is, if you wreck it, you can go to any metal supplier and make a new one in just under an hour for less than the cost of a prefabbed extension.