I have a 1991 K5, the frame is bad enough that its not worth putting a ton of money into it, but it has to last another 3-5 years. It is mainly a daily driver that sees some towing (up to 3400lbs. + trailer), and occasional backwoods trail. I would like to upgrade the axles as strong as possible but without spending to much money. I can't afford to purchase 8 lug rims or convert an 8 lug to 6 lug, so 8 lug axles are out. I want 4.10 gear in front and back. So my question would be, what are the strongest 6 lug axle? I think Dana 44 up font and 12 bolt in the rear. What do you guys think? Do they offer a 14bolt SF in 6 lug? And what trucks could I find these axles on from a junk yard? Thanks for the help.