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Old 05-30-2023, 03:55 PM   #667
OKGMC4
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Join Date: Oct 2009
Location: Broken Arrow, OK
Posts: 1,220
Re: Yet another GMC build

Took the trans apart and all the frictions and steels looked perfect so put them back in. The only damage found was a chewed up converter snout, the stator bushing was banged up, and the front seal came out in little pieces. I replaced the bad parts and put it back in and it’s been driving perfect for almost 200 miles now. Not really sure why it blew the front seal out in the first place. The bad news is I’m not 100 percent thrilled with the 5.3 power. Seems to have about what my cammed 6.0 had naturally aspirated. Not bad, but I ain’t scared yet. Thinking of gapping the 6.0 rings and swapping it. More cubes, little more compression, more cam, and more boost should thoroughly scare / thrill me.
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56 GMC BUILD THREAD:
http://67-72chevytrucks.com/vboard/s...d.php?t=368649

69 long bed Chevy turned 67 gmc jimmy roadster:
https://67-72chevytrucks.com/vboard/...d.php?t=851167
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