The factory 7 degree shim is missing on both sides, causing the rearmost u-joint to operate at nearly 8 degrees, instead of the recommended 0.5~3 degrees. This is contributing to the drumming & vibration in the cabin, and may eventually cause the u-joint to fail violently at high speed.
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F3TZ-5729-A JBG $29ea x2 sh tax; recommend new U-bolt set (4 bolts 8 nuts)
JBG $28 sh tax ***********
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R&R rear axle U-bolts to install stock-style wedges (labor only) $120 ***********
