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#1 |
Registered User
Join Date: Jun 2011
Location: Central OR
Posts: 659
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81 K30 Flat Bed
This is what it looked like at the POs place. Not very pretty. He was asking $1350 for a long time and I got tired of seeing it so I offered $850. Took it to the closest gas station fueled it, aired up the tires, and drove it home. It has a 454, TH400, NP205, 3:73s, Try Y headers, Edelbrock performer low, and a Holley.
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1955 GMC 250 8 Flatbed 1971 C30 157" 350 4spd 10' Flatbed 81 GMC K30 CnC 9' Flatbed 454 T400 89 GMC Jimmy Stock https://67-72chevytrucks.com/vboard/...d.php?t=810958 71 LT1 Convertible, 72 Coupe 69 CJ5, 75 CJ6, 67 M715, 72 M35A2 Bobbed, 95 XLC2 |
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#2 |
Registered User
Join Date: Sep 2012
Location: Midway, NC
Posts: 3,275
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Re: 81 K30 Flat Bed
So what's the plans for this rig?
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http://67-72chevytrucks.com/vboard/s...d.php?t=581873 The low buck build threads. Check'em out! http://67-72chevytrucks.com/vboard/s...d.php?t=666022 My build thread Crossmembers CC |
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#3 |
Registered User
Join Date: Jun 2011
Location: Central OR
Posts: 659
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Re: 81 K30 Flat Bed
Plans are to go through it from top to bottom for use as an all season parts and firewood hauler.
So far... I bought an 87 3/4 with cab lights for body parts. Cleaned most of the P O out of the truck. Rebuilt the transfer case using the 205 overhaul in the 4x4 section(big help). Rebuilt the rear driveline. And I cut the old exhaust off and had a new system installed. Next project will be new VCGs (what a mess), install a PCV system and throw away the breather filters.
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1955 GMC 250 8 Flatbed 1971 C30 157" 350 4spd 10' Flatbed 81 GMC K30 CnC 9' Flatbed 454 T400 89 GMC Jimmy Stock https://67-72chevytrucks.com/vboard/...d.php?t=810958 71 LT1 Convertible, 72 Coupe 69 CJ5, 75 CJ6, 67 M715, 72 M35A2 Bobbed, 95 XLC2 |
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#4 |
Registered User
Join Date: Dec 2009
Location: Fairbanks, AK
Posts: 1,830
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Re: 81 K30 Flat Bed
Cool truck. It looks ready to work.
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-Marcus 1991 V3500 L29 454 4L80E NP205 D60/14 Bolt 4.56's 1984 K30 292 TH400 NP205 D60/14 Bolt 4.56's flat bed 7'6" Meyer Plow 2022 Silverado 3500 L8T Project Daily Driver Project Heavy Hauler Project Plow Truck |
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#5 |
Registered User
Join Date: Sep 2012
Location: Pierce, WA
Posts: 115
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Re: 81 K30 Flat Bed
Nice truck, you work fast! Any issues with the 205 rebuild?
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#6 |
Registered User
Join Date: Jun 2011
Location: Central OR
Posts: 659
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Re: 81 K30 Flat Bed
The only hickup was the Tcase to adapter gasket. Mine had a larger ID than the one supplied with the kit. $4 bucks later it was back together. I was a little apprehensive at first but it goes together just like it comes apart. I would not have attempted it without the jbclassix writeup.
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1955 GMC 250 8 Flatbed 1971 C30 157" 350 4spd 10' Flatbed 81 GMC K30 CnC 9' Flatbed 454 T400 89 GMC Jimmy Stock https://67-72chevytrucks.com/vboard/...d.php?t=810958 71 LT1 Convertible, 72 Coupe 69 CJ5, 75 CJ6, 67 M715, 72 M35A2 Bobbed, 95 XLC2 |
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#7 |
Registered User
Join Date: Jun 2011
Location: Central OR
Posts: 659
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Re: 81 K30 Flat Bed
A promised, no more valve cover leaks or cheesy air cleaner. It still needs hours of tidying up under there. At least I dont smell of burnt oil when I arrive at my destination.
Next, its getting a tune up, a carb fine tune, oil change, and an electric choke if I can remember what I did with it.
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1955 GMC 250 8 Flatbed 1971 C30 157" 350 4spd 10' Flatbed 81 GMC K30 CnC 9' Flatbed 454 T400 89 GMC Jimmy Stock https://67-72chevytrucks.com/vboard/...d.php?t=810958 71 LT1 Convertible, 72 Coupe 69 CJ5, 75 CJ6, 67 M715, 72 M35A2 Bobbed, 95 XLC2 |
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#8 |
Registered User
Join Date: Jun 2011
Location: Central OR
Posts: 659
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Re: 81 K30 Flat Bed
Picked up a really nice Warn bumper on CL today. I have a 9000i to go in it.
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1955 GMC 250 8 Flatbed 1971 C30 157" 350 4spd 10' Flatbed 81 GMC K30 CnC 9' Flatbed 454 T400 89 GMC Jimmy Stock https://67-72chevytrucks.com/vboard/...d.php?t=810958 71 LT1 Convertible, 72 Coupe 69 CJ5, 75 CJ6, 67 M715, 72 M35A2 Bobbed, 95 XLC2 |
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#9 |
Registered User
Join Date: Jun 2011
Location: Central OR
Posts: 659
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Re: 81 K30 Flat Bed
I removed the Dana 60 for a little lovin.
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1955 GMC 250 8 Flatbed 1971 C30 157" 350 4spd 10' Flatbed 81 GMC K30 CnC 9' Flatbed 454 T400 89 GMC Jimmy Stock https://67-72chevytrucks.com/vboard/...d.php?t=810958 71 LT1 Convertible, 72 Coupe 69 CJ5, 75 CJ6, 67 M715, 72 M35A2 Bobbed, 95 XLC2 |
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#10 |
Registered User
Join Date: Jun 2012
Location: edmonton alberta
Posts: 422
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Re: 81 K30 Flat Bed
looks like one tough truck!
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Tyler ------------------------------------------------------ 1980 2wd blazer 1985 k10 diesel truckhttp://67-72chevytrucks.com/vboard/s...d.php?t=652276 1987 wrangler 4x4 build-http://67-72chevytrucks.com/vboard/s...d.php?t=663784 |
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#11 |
Registered User
Join Date: Jun 2011
Location: Central OR
Posts: 659
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Re: 81 K30 Flat Bed
Finally assembled.
All new bearing and seals, rotors and calipers, king pins, U joints, Powr-Lok and polished stainless cover. Now to find time to get it installed.
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1955 GMC 250 8 Flatbed 1971 C30 157" 350 4spd 10' Flatbed 81 GMC K30 CnC 9' Flatbed 454 T400 89 GMC Jimmy Stock https://67-72chevytrucks.com/vboard/...d.php?t=810958 71 LT1 Convertible, 72 Coupe 69 CJ5, 75 CJ6, 67 M715, 72 M35A2 Bobbed, 95 XLC2 |
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#12 |
Registered User
Join Date: Dec 2009
Location: Fairbanks, AK
Posts: 1,830
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Re: 81 K30 Flat Bed
That's pretty! I'll be curious to see how you like the limited slip in the front.
__________________
-Marcus 1991 V3500 L29 454 4L80E NP205 D60/14 Bolt 4.56's 1984 K30 292 TH400 NP205 D60/14 Bolt 4.56's flat bed 7'6" Meyer Plow 2022 Silverado 3500 L8T Project Daily Driver Project Heavy Hauler Project Plow Truck |
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#13 | |
Registered User
Join Date: Jun 2011
Location: Central OR
Posts: 659
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Re: 81 K30 Flat Bed
Quote:
The Powr-Lok can be set up loose, several ways or tight. I set this one up loose as Spicer recomends for a front application. Finally got around to installing it with new springs and new shocks.
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1955 GMC 250 8 Flatbed 1971 C30 157" 350 4spd 10' Flatbed 81 GMC K30 CnC 9' Flatbed 454 T400 89 GMC Jimmy Stock https://67-72chevytrucks.com/vboard/...d.php?t=810958 71 LT1 Convertible, 72 Coupe 69 CJ5, 75 CJ6, 67 M715, 72 M35A2 Bobbed, 95 XLC2 |
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#14 |
Registered User
Join Date: Jun 2011
Location: Central OR
Posts: 659
|
Re: 81 K30 Flat Bed
Dropped the rear end for service and cleaning.
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1955 GMC 250 8 Flatbed 1971 C30 157" 350 4spd 10' Flatbed 81 GMC K30 CnC 9' Flatbed 454 T400 89 GMC Jimmy Stock https://67-72chevytrucks.com/vboard/...d.php?t=810958 71 LT1 Convertible, 72 Coupe 69 CJ5, 75 CJ6, 67 M715, 72 M35A2 Bobbed, 95 XLC2 |
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#15 |
Registered User
Join Date: Jun 2011
Location: Central OR
Posts: 659
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Re: 81 K30 Flat Bed
These lower U bolt cradles hold a lot of garbage. I drilled some drain holes to let the water out and make it easier to keep clean.
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1955 GMC 250 8 Flatbed 1971 C30 157" 350 4spd 10' Flatbed 81 GMC K30 CnC 9' Flatbed 454 T400 89 GMC Jimmy Stock https://67-72chevytrucks.com/vboard/...d.php?t=810958 71 LT1 Convertible, 72 Coupe 69 CJ5, 75 CJ6, 67 M715, 72 M35A2 Bobbed, 95 XLC2 |
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#16 |
Registered User
![]() Join Date: Jul 2014
Location: Winston-Salem, NC
Posts: 561
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Re: 81 K30 Flat Bed
Outstanding work!
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#17 |
Registered User
Join Date: Sep 2012
Location: CT
Posts: 133
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Re: 81 K30 Flat Bed
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#18 |
Registered User
Join Date: Jun 2011
Location: Central OR
Posts: 659
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Re: 81 K30 Flat Bed
Thanks Guys.
New Shoes, Hdw, Wheel Cyls installed and drums turned. I had NAPA turn my drums and I dont know what they did but they are cross hatched. I was just expecting a turn job. And a pic of the 3:73 Gov Lock.
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1955 GMC 250 8 Flatbed 1971 C30 157" 350 4spd 10' Flatbed 81 GMC K30 CnC 9' Flatbed 454 T400 89 GMC Jimmy Stock https://67-72chevytrucks.com/vboard/...d.php?t=810958 71 LT1 Convertible, 72 Coupe 69 CJ5, 75 CJ6, 67 M715, 72 M35A2 Bobbed, 95 XLC2 |
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#19 |
Registered User
Join Date: Jun 2011
Location: Central OR
Posts: 659
|
Re: 81 K30 Flat Bed
Finished the rear end and powerwashed the rear underside.
__________________
1955 GMC 250 8 Flatbed 1971 C30 157" 350 4spd 10' Flatbed 81 GMC K30 CnC 9' Flatbed 454 T400 89 GMC Jimmy Stock https://67-72chevytrucks.com/vboard/...d.php?t=810958 71 LT1 Convertible, 72 Coupe 69 CJ5, 75 CJ6, 67 M715, 72 M35A2 Bobbed, 95 XLC2 |
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#20 |
Registered User
![]() Join Date: Jul 2014
Location: Winston-Salem, NC
Posts: 561
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Re: 81 K30 Flat Bed
How did you clean your axle housing before you painted it? What kind of paint did you use? Looking great!
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#21 | |
Registered User
Join Date: Jun 2011
Location: Central OR
Posts: 659
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Re: 81 K30 Flat Bed
Quote:
NAPA Super Clean is the purple stuff everyone sells. Purple Power ect... It is slightly acidic so it removes rust as well as grease. It also takes the gloss off anything shiny it is sprayed on at full strength. It also dulls shiny aluminum and is very nasty to the eyes and respratory system. I get it in the 2.5 gal bottles and spray it full strength from a bug sprayer. A 4000 psi pressure washer with the pencil tip takes everything off after soaking. Rustoleum Pro. New springs arrived, new U Bolts, cleaned and painted my overloads. When all that is dry I will reassemble the spring packs with the overloads and the BFG Velvet Rides.
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1955 GMC 250 8 Flatbed 1971 C30 157" 350 4spd 10' Flatbed 81 GMC K30 CnC 9' Flatbed 454 T400 89 GMC Jimmy Stock https://67-72chevytrucks.com/vboard/...d.php?t=810958 71 LT1 Convertible, 72 Coupe 69 CJ5, 75 CJ6, 67 M715, 72 M35A2 Bobbed, 95 XLC2 |
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#22 |
Second Chance Program
Join Date: Jun 2006
Location: Portland, OR
Posts: 2,642
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Re: 81 K30 Flat Bed
I like it.
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90 Chevy Suburban 2500 5.3 swap/th400/np241/14bltSF/10blt. 77 C20 crew cab Silverado. 396/th400. In work. |
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#23 |
Registered User
Join Date: May 2008
Location: Spokane, Washington
Posts: 596
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Re: 81 K30 Flat Bed
nice build! Glad its getting redone rather than parted out. Good job on the detail.
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#24 |
Registered User
![]() Join Date: Jul 2014
Location: Winston-Salem, NC
Posts: 561
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Re: 81 K30 Flat Bed
Thanks! Keep up the solid work and posts!
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#25 |
Registered User
Join Date: Jun 2011
Location: Central OR
Posts: 659
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Re: 81 K30 Flat Bed
Center pin. Its a 1" overload spacer then the 8 over 1, then an overload spacer doing what its supposed to do with the overload on top of it and the center pin through them all.
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1955 GMC 250 8 Flatbed 1971 C30 157" 350 4spd 10' Flatbed 81 GMC K30 CnC 9' Flatbed 454 T400 89 GMC Jimmy Stock https://67-72chevytrucks.com/vboard/...d.php?t=810958 71 LT1 Convertible, 72 Coupe 69 CJ5, 75 CJ6, 67 M715, 72 M35A2 Bobbed, 95 XLC2 |
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