Th400 knocking

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1986k2500kyle

Junior Member
Joined
Jan 13, 2023
Posts
4
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1
Location
ri
First Name
kyle
Truck Year
1986
Truck Model
k2500
Engine Size
350
Was wondering if anyone has had this happen or knows it it could be but my truck has a new torque converter and flex plat transmission shifts perfect but when I was driving today it randomly started knocking loud and almost felt like I could feel it on my tranny tunnel but my flex plate doesn’t look warped and it’s not cracked all of my torque converter bolts are tight transmission still shifts fine but truck doesn’t seem to want to accelerate as easily also it’s got a brand new engine in it and there’s now a rear main oil leak right after this happened
1986 gmc k2500
Blueprint 383 stroker with a th400
 

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