| material design is 100% different. A rubber/urethane piece will isolate noise, a metal one will conduct it. Thats academic. The rest of this "dilemma" of yours is complete a matter of personal tolerance. Personally I think Spencer is nuts w. the solid mount on his diff and sub-frame, he thinks it's great. What benefit will the aluminum ones give you over the ES ones that you'd be willing to sacrifice ride/cabin quality? Do or do not there is no try. In other words, pick one and move one. My pussy hurts just from thinking about this 100 times.
 Bernie Bilski berniebilski@cox.net 1995 Nissan 300ZX TwinTurbo in Cobalt Green 1997 Nissan 240SX SE in Ultra Red (some assembly required) 1995 Nissan Pick-Up XE in Super Black ZCCNV #390 ~ ECZA #368 Need INSTALLS, DIAGNOSTICS, SERVICE or PARTS in the NoVA/DC/MD area? Please email me or check out my current inventory. 350Z Track Edition 12.8" Rotor Adapters are back!
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