Weird clunk after hard stop

mpjman

New member
Jun 22, 2020
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bought a 2019 used truck 2 months ago and am getting used to the truck, and i have a question.

Occasionally when i make a hard stop or an abrupt stop, i feel what feels like a clunk, (almost like something slid forward in the bed). When i proceed to go, it accelerates fine. Is this normal or am looking at the makings of a problem. Doesn't do it alway but have felt it a few times,



Thanks all
 

Chevy1925

don't know sh!t about IFS
Staff member
Oct 21, 2009
18,206
440
83
Phoenix Az
Double check the rear leaf spring bolts are torqued down tight. Known for being loose and causing this
 

Hoser

Member
Jun 18, 2016
188
11
18
Farmington, MN
More often than not it’s a lack of grease on driveshaft splines. Also, at around 3/4 tank full, the fuel will slosh in a way that makes it feel almost like a clunk.
 
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N2BRK

Well-known member
Dec 31, 2009
1,647
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856 NJ
I just solved this on a friend's gasser. Ubolts at the leaf springs were loose as hell.
 

Chevy1925

don't know sh!t about IFS
Staff member
Oct 21, 2009
18,206
440
83
Phoenix Az
the old sticky yoke issue isnt what it use to be from years past. For some reason GM did not tighten the ass end of these trucks down right and it feels just like a sticky yoke.

Id check the leaf spring bolts and u-bolts. thats fixed every one ive seen.
 

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