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Old 08-23-2020, 03:36 PM   #1
farmall
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89 k5 jimmy

Went down to the CA NV OR border and picked up this K5. Fueled it up and headed North through the dry lakes to its new home. Drove great, temps stayed normal, tire or driveline vibration was the only noted problem. It was so smokey from the sterilization of CA that you could not see the horizion.
Starter pics.
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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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Old 08-23-2020, 03:54 PM   #2
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Re: 89 k5 jimmy

It is a former Lake County Search and Rescue rig.
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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

Last edited by farmall; 08-24-2020 at 10:12 AM.
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Old 08-23-2020, 07:35 PM   #3
LT7A
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Re: 89 k5 jimmy

Cool rig and cool drive. What are the specs on it and what's your plan for it?
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Old 09-22-2020, 08:24 AM   #4
Corts60
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Re: 89 k5 jimmy

Got to love those rust free desert trucks!
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Old 09-27-2020, 07:56 PM   #5
farmall
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Re: 89 k5 jimmy

LT it is going to be a dog hauler and winter driver. It has all the Silverado type options, electric everything, tilt, 350 auto and sadly no posi. I think it is going to get Trutracs. Rear first.

The radiator was rotten to the core so I flushed it and installed a new rad, hoses, T-stat. The heater works great, it has gone below 32 twice here. I do need to look at the cables to make sure doors are opening and closing fully before winter hits.
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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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Old 10-03-2020, 10:41 PM   #6
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Re: 89 k5 jimmy

Started on the driveline vibration.

New rear U-Joints.
One was dust.
They had been replaced once before.

Still has a vibration under load, all gears.
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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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Old 11-01-2020, 08:03 PM   #7
farmall
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Re: 89 k5 jimmy

Installed a Trutrac this weekend. No more vibration. Everything went smooth other than the neighbors 3 pitbulls killed my dog.
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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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Old 11-01-2020, 08:08 PM   #8
farmall
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Re: 89 k5 jimmy

Forgot the pic.
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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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Old 11-02-2020, 01:16 AM   #9
Irish1941
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Re: 89 k5 jimmy

Quote:
Originally Posted by farmall View Post
Installed a Trutrac this weekend. No more vibration. Everything went smooth other than the neighbors 3 pitbulls killed my dog.
Wait...what? Killed your dog?? That old timer laying down in the pic?
WTF? Better be 3 dead pitbulls.
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Old 11-03-2020, 10:14 AM   #10
LT7A
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Re: 89 k5 jimmy

Good work, that drivetrain was ready for some attention. I've actually opted out on having front posi on four by fours before. There are certain times, depending on what you do, where if you're on an icy road with any sort of a crown, when you start up with all four you can just start sliding laterally toward the ditch. Even in second gear with light throttle. I've had that happen and it's really unnerving. In that case, it's nice to just have 3 out of 4 tires turning and slowly work your way back to where you want to be. Anyway, very sorry about your dog. Easy to tell that he was a dependable companion, just by the picture. Don't know the circumstances, but I agree with Irish from the point of view it would hard to feel like those dogs shouldn't be put down for a savage act like that. Hopefully you and the neighbor can come to some different sort of agreement and some type of boundary. I assume a new dog is in the works, because that's part of the reason you got this truck. Good luck man.
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