All pro invented it. and its for sale for 400 bucks. here is what they say: [FONT=tahoma,arial,helvetica,sans-serif]Left and right 4130 Chromoly Hy-Steer™ one piece steering arms - now 30% stronger![/FONT] All Pro Off Road now marlin has it too, also 400 bucks. here is what they say: eering kit features superior quality Billet CNC machined arms, heavy duty .250" wall DOM tie rod and drag link, Marlin Crawler: Selling HySteer™ Kits since 1997! heres what i say: i need it. i found a deal on a set front and rear springs. i need it. is there a difference between the two? is billet just a fancy name? what is better forged from all poo or CNC billet from the turtle? since they both are the same price, i obviously want the superior one. i figure when i call both places each one will try and convince me thiers is superior so which one should i buy?