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Old 02-24-2005, 07:36 AM   #1
1969K10
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How a Rockwell works

So, I blew out a U-joint, and Tuesday after work, I found it. Unbolted the rear drive shaft, to get to work Wed. morning... Anyway, when I was replacing the U-joint, I still had the X-fer in gear & the hubs locked. So I reached up, and slipped the X-fer into neutral. Well, the front & rear driveshafts were still connected. This caught me off guard I ended up unlocking the front hubs (2-HI would have worked).

So this got me to thinking what are the "main" differences between the Rockwell, and a New Process. If I recall, I have straight cut gears, what about the NP?, and the neutral thing...

Just wondering for my own general info...
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1969 K10 - V8, 465, 205, 12 bolt, D44 2002-current
1969 K20 - V8, 465, 221, Eaton, D44 2012-current
Nothin' but drums on all 4 corners!

past horses in the stable
72 C10-short step (97-02), 68 C10-long fleet (06-12)
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Old 02-24-2005, 08:55 AM   #2
JIMs70GMC
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The new process gears are helical.
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1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs
1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX
1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears
1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now.....
1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone.
1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed.

1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm
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Old 02-24-2005, 06:58 PM   #3
jeffspower
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When you have the t-case in neutral, both output shafts are still coupled. The t-case gears are uncoupled from the trans. output shaft.
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'68 GMC shortbox 4x4 350/SM465/T221- bought it in '83 SOLD

'72 K20 500 Cad/TH400/NP205 SOLD

'92 Chevy 2500 6.5 mech TD 4L80E crusty daily driver

'72 Monte Carlo... sweet low mile toy

'11 Dodge Challenger IE 392 6spd... midlife car
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Old 02-26-2005, 09:00 AM   #4
1969K10
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Cool, thanks y'all!
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1969 K10 - V8, 465, 205, 12 bolt, D44 2002-current
1969 K20 - V8, 465, 221, Eaton, D44 2012-current
Nothin' but drums on all 4 corners!

past horses in the stable
72 C10-short step (97-02), 68 C10-long fleet (06-12)
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