Truck shimmies at 50mph+ with new tires and lift

i bought a 3in lift rought country and new tires and wheels 33/12.50 /on 17 had wheel alignment and tires balance and I it start to shimmy at 50 to 60 so what do you guys think

 

Welcome to TW! Assuming the tires are balanced correctly, it's probably a driveshaft vibe that might be fixed with either (or both) axle shims + carrier bearing drop kit.

 

thanks for the information and as it turn out it i had to get the wheels rebalance and now on to the next project of getting a stronger front bumper as up here in northern California the deer loves to jump out in front of you

 

Welcome to The Forum!

 

Welcome.

 

What part of nor cal. I am in Crescent City.

 

Welcome to TW!

 

“Ya got mud in ya tires”

 

Probably caster...or rather, lack of it.

 

hello and merry Christmas to all well santa came and drop my front bumper with a winch 1350 lb and no am not talking about a living one LOMAO sorry to say she passed away due to cancer a year ago

 

Damn dude. This post is a roller coaster of emotions and lack of punctuation lol.

Congrats on the winch and bummer, sorry about the wench.