Hi from IL

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Strick

Strick

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Location
Dunn, NC
First Name
Harold
Truck Year
1979
Truck Model
C20 Crew
Engine Size
350
I've got one of those NP203/TH400 setup somewhere out in the weeds. I love those dual crossmembers with skidplate. I'm building a '78 K20 GMC with almost the same setup as you with the exception of mine being SM465/NP205. Keep your pics coming and let us know the "what-for" on the hole alignments when you find out.

HS
 
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idahovette

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Location
Weiser Idaho
First Name
Perry
Truck Year
1975-1979
Truck Model
K20-K10
Engine Size
350
Strick said:
I was going to mention that I've seen 20's with TH350 trannies which are shorter than the TH400. @Idaho, you bought your K20 when I was only a few months old!!! Wow.

HS
Click to expand...
Thanks for raining on my parade @Strick :flipthebird:......yes, I am OLD!!!
 
Strick

Strick

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Harold
Truck Year
1979
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C20 Crew
Engine Size
350
idahovette said:
.....yes, I am OLD!!!
Click to expand...
Wow, replied with sign language too!!! My dear ole dad bought his (mine) crew C20 when I was 5 years old. He told me several times while growing up that "there was a time when I was thousands of times older than you, but you're catching up". When I finally was smart enough to realize what he was saying it was a great "AHA" moment. Now, I tell my kids and Grands that same thing he told me years back. Enjoy the birthdays @idahovette, I'm certain there is much experience that comes with those annual reminders.

HS
 
L

lscaspall

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Location
Chicago
First Name
Scott
Truck Year
1974
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K20
Engine Size
350
We decided to move the cross members. Thank you all for the welcome notes and feedback! It’s still a mystery as to why the mounting positions didn’t line up.
 

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Sgt Gus

Sgt Gus

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Location
Texas
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Mark
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87
Truck Model
R20 3/4 ton
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454ci/7.4L
Wow, sure admire you guys that do frame ups! Nice!
 
legend57

legend57

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Location
San Jose, CA
First Name
Rob
Truck Year
1976
Truck Model
K20
Engine Size
400
Since it is a fairly small amount, it is possible the front motor mount brackets were moved. They are slotted and have fore/aft adjustment.
 
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