DutchmenSport wrote:
Get 4 of these. They won't unscrew, bleed off, hold a considerable amount of weight, are very light weight themselves, and relatively cheap. My dad used these in 1963 on his travel trailer. They are time proven and probably still the best you can get, if you don't mind setting them up manually, which is why they are not popular. I purchased 4 myself at a yard sale. I think I paid $2.00 for all 4 of them. They come in very handy, and do a pretty good job. I use them with my stabilizer jacks on my camper, which gives me 4 scissor jacks, 4 of the aluminum stabilizer jacks, and the tongue jack.
X2.
I do the same, but only have two. I put them just forward of the trailer axles. I believe they help considerably with the bounce.