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**jeffahart** · 07-09-2015, 05:41 PM

pull the U joints and look at them. Knock Knock is usually a U joint. And it feels like it's under your feet; and they can act funny when going out. Process of elimination and U joints are easy to pull out.

Just pull and inspect, as long as you are under the truck.

07-09-2015, 05:41 PM	#11
jeffahart Senior Member Join Date: May 2012 Location: Scottsdale, AZ Posts: 1,910	Re: SM465 Gear Knock/Tick???? pull the U joints and look at them. Knock Knock is usually a U joint. And it feels like it's under your feet; and they can act funny when going out. Process of elimination and U joints are easy to pull out. Just pull and inspect, as long as you are under the truck. __________________ White K20