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Old 06-06-2024, 05:14 PM   #1
HWY-STAR
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1972 K20 frame and drive train

1972 3/4 ton 4x4 frame and drive train, manual transmission, the back end of the frame is rough, needs repair. everything related to a 4 wheel
drive included.
High hump
Fan shroud
Exhaust manifolds for 350 sb
Upper steel radiator pipe
If I am missing anything else specific to 4 wheel drive, please let me know. Thanks.
1800.00

Call for more information and pictures. 507 458 1699
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72 sierra grande 402/400
72 longhorn 402/400-----FOR SALE
67 swb fleet side 350/350 buddy buckets tack/vac dash project-------SOLD
71 Cheyenne c20 350/350 all original except seat cover-SOLD
1970 GMC 3500 SRW 350 4 speed----SOLD
72 c-30 bb 4 speed dump bed
72 k-20 4x4 350/350 patina rat rod----SOLD
80 chevy p20 aluminum step van 350/400 12 ft cargo
62 parts car & 63 project nova, 4 door 6 cy
74 Honda cb 360 only 4000 miles
71 C20 custom camper, Co truck, auto, 454

Last edited by HWY-STAR; 06-06-2024 at 06:14 PM.
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Old 06-07-2024, 11:20 AM   #2
Dedmunds62
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Re: 1972 K20 frame and drive train

have the np205 CROSSMEMBER
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Old 06-08-2024, 11:55 AM   #3
HWY-STAR
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Re: 1972 K20 frame and drive train

Yes sir, it is a complete drive train.
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72 sierra grande 402/400
72 longhorn 402/400-----FOR SALE
67 swb fleet side 350/350 buddy buckets tack/vac dash project-------SOLD
71 Cheyenne c20 350/350 all original except seat cover-SOLD
1970 GMC 3500 SRW 350 4 speed----SOLD
72 c-30 bb 4 speed dump bed
72 k-20 4x4 350/350 patina rat rod----SOLD
80 chevy p20 aluminum step van 350/400 12 ft cargo
62 parts car & 63 project nova, 4 door 6 cy
74 Honda cb 360 only 4000 miles
71 C20 custom camper, Co truck, auto, 454
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Old 06-27-2024, 05:27 PM   #4
87gn
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Re: 1972 K20 frame and drive train

Interested in the rear ring and pinion if the ratio is 410.
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Old 06-27-2024, 06:52 PM   #5
HWY-STAR
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Re: 1972 K20 frame and drive train

Thanks for the intrest. BUT.
I apologize that i am not very knowledgeable about the different 4 wheel drive components. Especially after 1972
I have been told by a few forum member that the 4 wheel drive train is from 1973-1978 as it has a Dana 60 in the rear and has the yellow spicer hub dials.
The frame is a 1972 frame.
After I get the junk body off, I will repost with pictures.
If can't sell the frame and drive Train Together, I will the part it out.
Thanks everone.
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72 sierra grande 402/400
72 longhorn 402/400-----FOR SALE
67 swb fleet side 350/350 buddy buckets tack/vac dash project-------SOLD
71 Cheyenne c20 350/350 all original except seat cover-SOLD
1970 GMC 3500 SRW 350 4 speed----SOLD
72 c-30 bb 4 speed dump bed
72 k-20 4x4 350/350 patina rat rod----SOLD
80 chevy p20 aluminum step van 350/400 12 ft cargo
62 parts car & 63 project nova, 4 door 6 cy
74 Honda cb 360 only 4000 miles
71 C20 custom camper, Co truck, auto, 454
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Old 06-27-2024, 09:32 PM   #6
jerry moss
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Smile Re: 1972 K20 frame and drive train

dana 60 could be correct for 72, 73 on up used 14 bolt corporate in 3/4 ton and the big hubs with yellow centers bolt up the same as the blue centers or someone might have changed the whole front differential since the spring spacing is the same up to 88 on trucks and 91 on blazers and suburban's. not sure of the exact year GM stopped using the big hub fronts.
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72 cheyenne super K20- tilt,tach,vacuum,speedwarning,buckets,shoulder belts,am/fm,tow hooks,bumper guards,toolbox,aux. fuel tank,posi front and rear,plus other goodies!!! SOLD
69 suburban K20-tilt,tach,vacuum,speedwarning,buckets,shoulder belts,am/fm,4 inch all spring lift,4 speed, 14 bolt full floater, dana 44 HD,warn winch,posi front and rear,tow hooks,plus other goodies.
73/80 chevy/gmc K20 SB400,turbo 400,205,tilt,a-c,gas hog.
77 K/5 cheyenne blazer-daily driver/beater. SON HAS IT NOW
BRENTWOOD,CALIFORNIA
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Old 06-27-2024, 11:10 PM   #7
HWY-STAR
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Re: 1972 K20 frame and drive train

Thank you Jerry for posting your knowledge of 4 weel drives. Did the 72s have a large ( about 4-1/2 inch) one piece drive shaft ? It is a long bed, Dana 60 in the rear and Dana 44 up front, if i remember correctly.
__________________
72 sierra grande 402/400
72 longhorn 402/400-----FOR SALE
67 swb fleet side 350/350 buddy buckets tack/vac dash project-------SOLD
71 Cheyenne c20 350/350 all original except seat cover-SOLD
1970 GMC 3500 SRW 350 4 speed----SOLD
72 c-30 bb 4 speed dump bed
72 k-20 4x4 350/350 patina rat rod----SOLD
80 chevy p20 aluminum step van 350/400 12 ft cargo
62 parts car & 63 project nova, 4 door 6 cy
74 Honda cb 360 only 4000 miles
71 C20 custom camper, Co truck, auto, 454
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Old 06-28-2024, 01:13 PM   #8
1970cstblazer
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Lightbulb Re: 1972 K20 frame and drive train

Quote:
Originally Posted by jerry moss View Post
not sure of the exact year GM stopped using the big hub fronts.
Mid year 1977.
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1970 K/5 Blazer CST 4WD, Medium Bronze, 93k ACT. miles, 350, 4 speed, rear positraction, 16.5" x 8.25" HD wheel option, tilt, tach, vacuum, AM/FM, manual throttle...Dad ordered and purchased new 4/70. Currently frame off restoration finally getting close to completion..

1972 Cheyenne Super 20 2WD, DK Blue/White, 90K ACT. miles, 402, TH400, 4.10 open, tilt, tach, vacuum, A/C, AM/FM, manual throttle.. A mostly original paint never rusted Texas survivor...

2017 Sierra 1500 SLT 4WD, Black, 45k miles, 5.3, 6L80E, 3.42 LS, 20" polished wheels, everything but moonroof and 6.2...

2019 Canyon SLT 4WD, White, 62k miles, 3.6, 8L45, 3.23 LS, 18" wheels
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Old 06-28-2024, 04:48 PM   #9
jerry moss
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Smile Re: 1972 K20 frame and drive train

Quote:
Originally Posted by HWY-STAR View Post
Thank you Jerry for posting your knowledge of 4 weel drives. Did the 72s have a large ( about 4-1/2 inch) one piece drive shaft ? It is a long bed, Dana 60 in the rear and Dana 44 up front, if i remember correctly.
yes, the huge driveshaft was original.
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jerry moss
72 cheyenne super K20- tilt,tach,vacuum,speedwarning,buckets,shoulder belts,am/fm,tow hooks,bumper guards,toolbox,aux. fuel tank,posi front and rear,plus other goodies!!! SOLD
69 suburban K20-tilt,tach,vacuum,speedwarning,buckets,shoulder belts,am/fm,4 inch all spring lift,4 speed, 14 bolt full floater, dana 44 HD,warn winch,posi front and rear,tow hooks,plus other goodies.
73/80 chevy/gmc K20 SB400,turbo 400,205,tilt,a-c,gas hog.
77 K/5 cheyenne blazer-daily driver/beater. SON HAS IT NOW
BRENTWOOD,CALIFORNIA
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Old 06-28-2024, 04:58 PM   #10
HWY-STAR
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Re: 1972 K20 frame and drive train

Thanks Jerry. Maybe the front and rear differentials are original to the 72 frame.
__________________
72 sierra grande 402/400
72 longhorn 402/400-----FOR SALE
67 swb fleet side 350/350 buddy buckets tack/vac dash project-------SOLD
71 Cheyenne c20 350/350 all original except seat cover-SOLD
1970 GMC 3500 SRW 350 4 speed----SOLD
72 c-30 bb 4 speed dump bed
72 k-20 4x4 350/350 patina rat rod----SOLD
80 chevy p20 aluminum step van 350/400 12 ft cargo
62 parts car & 63 project nova, 4 door 6 cy
74 Honda cb 360 only 4000 miles
71 C20 custom camper, Co truck, auto, 454
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