I do not know your torque but suspect that 45LBS may be high. Someone will chime in with the info. Yours will be different, but for example the 60x series has a final torque of up to 35NM (26lbs).

45lbs = 61nm

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Terry Allison
N. Calif. & Boca Chica, Panama

09' E320 Bluetec 77k (USA)
09' Hyundai Santa Fe Diesel 48k (S.A.)