Th350 guck

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Old mark

Junior Member
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Sep 1, 2017
Posts
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Location
Mountain Home Idaho
First Name
Mark
Truck Year
1976
Truck Model
K20
Engine Size
350
Howdy all. After about 50 miles on getting my th350 rebuilt, it dont go forward or backward. The fluid level was full. Pulled the pan the bottom had a layer of gray sludge with lots of silver and yellow sparkley stuff in it. How bad am I screwed? The rebuilder got killed in an accident so no recourse there.
 

HotRodPC

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Location
OKC, OK
First Name
HotRod
Truck Year
85 K20 LWB
Truck Model
Silverado
Engine Size
454 - Turbo 400 - 3.73
Trash, start all over. Gray sludge is clutches as mentioned, and the silver sparkly is chewed up hard parts. Probably had to tight of end shaft play at either front or rear shaft and just chewed it up.
 

Old mark

Junior Member
Joined
Sep 1, 2017
Posts
8
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Location
Mountain Home Idaho
First Name
Mark
Truck Year
1976
Truck Model
K20
Engine Size
350
Thanks guys. Thats kinda what I was afraid of. Hopefully the case is still good.
 

Old mark

Junior Member
Joined
Sep 1, 2017
Posts
8
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Location
Mountain Home Idaho
First Name
Mark
Truck Year
1976
Truck Model
K20
Engine Size
350
Anybody know of a reliable transmission builder near Mountain Home Idaho?
 

idahovette

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Aug 7, 2016
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Location
Weiser Idaho
First Name
Perry
Truck Year
1975-1979
Truck Model
K20-K10
Engine Size
350
Anybody know of a reliable transmission builder near Mountain Home Idaho?
Try Ultimate transmission in Garden City Dave or Matt. They did a 2004R for my Nova 4 years ago ,works great. 208-631-2133 or 208-830-6449. They have a website also.
 

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