a 27" shock will not have anywhere near the compression you will want. the sportage rear axle is nowhere near heavy enough to require limiting straps unless you plan to jump the vehicle often. i relied on the shocks to act as both bumpstops and extension stops for over 2 years with no problems in shock performance. in fact, i left it this way for my new suspension as well, except i included bumpstops, mainly to keep the tires out of the sheetmetal. take the shocks and straps back and get 24-25" shocks and some sort of coil retension, either a bolt and a strap of plate steel or by doing what Dennis did. these are the best ideas. also, one more thing- your rear parking brake cables may not allow enough room for the extension of 27" shocks. they may act as limiting straps anyway and that's worse than topping-out a shock.