I had to replace a idler arm on a 92 Gmc, bought a Moog idler to replace stock. It had a lifetime replacement part warrentee. 1992 was a 2 bolt to the frame, 93 had three bolts to frame. I also ran 33x12.5 tires, the width of tire didn't help the idler arm, either.
previous owners replaced the ones on my 90 k1500 with moog if i remember correctly. I ran 35x12.50 and the idler arm is still going strong after around 30,000 HARD abused, "my truck can do anything" high school miles.
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