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Old 09-05-2013, 01:19 AM   #10
'63GENIII
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Join Date: Sep 2008
Location: San Carlos, Ca.
Posts: 3,048
Re: New Member - K20 TCase Question

One word...WOW! That thing is beautiful.
As far as the T221, I did the seals on mine. The seals came from Napa including the shift shaft seal. I would take a good look at the area of the yokes that the seals ride on. At 8k miles, there shouldn't be too much wear. If there is, there are sleeves that can be installed to repair any groove in the sealing surface. I would pay close attention to the bearing condition.. Mine were slightly worn from low fluid caused by leaky seals. By the time I repaired the seals, the damage was done. The T221 will not tolerate low oil levels for very long. Other than that, its a pretty good unit.
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'63 k15 long step
Vortec 7.4 - L29 Blackbear tune, Five 0 Motorsports injectors, Chris Straub Cam, NV4500, divorced 205
52" front and 63" rear spring swap
D44 / 14bff - disc axles
Milemarker 9K and 10.5K hydraulic winches

63" & B52 Spring Install http://67-72chevytrucks.com/vboard/s...ng+swap+thread


NV4500 Reverse Build Thread http://67-72chevytrucks.com/vboard/s...=reverse+build

L29 - 7.4 Vortec Build http://67-72chevytrucks.com/vboard/s...&highlight=L29
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