From 2/3 down the page "UPDATE: Use 1986-92 Jeep Comanche Monroe Sensatrac part #37029, which is 14.375" compressed and 23.000" extended. For comparison, stock rear XJ Sensatrac shock part #37027, is 12.750" compressed and 20.000" extended. The rear ZJ Monroe Sensatracs have a sleeve in the bottom and top bushings and no barpin for the top, so you have to press the sleeves out and put in a barpin or BPE in the top bushing to get them to work and the bottom bushing after removing the sleeve is an extremely tight fit installing onto the axle shock mount stud. The 37029 doesn't have the sleeves to press out, which saves a lot of time, and the bottom bushing fits right onto the axle mount just like the stock shock bushing, but you would still need to use a barpin or BPE for the top bushing
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