Sheesh, who would drive around with a fifty pound trolley jack in their truck? Maybe those who can't afford the "Aluminum Rade Day Jack" ($125-$550). I like the @Reg Evans solution; emergency roadside assistance and a cell phone ?
I finally gave up on y'all and digested the post by @BigDaddyO, then I got down on my knees, shimmied under the truck with a tape measure and came up with 8" ground to axel in the front and 10" in the rear. ERGO, any jack that will fit under the seat and raise fourteen inches or so should get the job done. Hell, I won't even need to cart around a stack of 2x4's. Phew!
I have no idea what @Charlie Stephenson was thinking. Reads like some kind of Haiku ?
I'm going to go back to the junkyard and see what kind of dough they might try to extort out of me for those stainless bars. Note too they are all pretty dinged up but could be refreshed. I'm not going to pay 150 each and try to sell them for 175 just to make twenty something bucks. That would be crazy. I also don't want to take apart the front end just to reach the nuts only to get priced out; do the part pulling for them for free! I would like to get that jack if they would sell it for a decent price - maybe fifty bucks?
My cynical side has me thinking the junkyard peeps throw outrageous prices at people who have pulled parts that would be an easy sell on EPAY. When the prospective customer shoots him that "you're out of your friggin' mind" look and walks out, they move the parts to their internet sales department. Am I reaching here? That notwithstanding, there is something magical about junkyards, an uncommon art form.
I'm gonna measure my under seat space and find a very small trolley jack or a nice bottle jack and call it a job done.