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Old 12-16-2005, 09:53 AM   #1
shelby987
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tearing up the yard

got home from work yesterday, and got my first chance to wheel my 70 4x4....I was very impressed, the 250 put up quite a fight while two tracking through the 10 inches of packed snow in the back yard....now I need tires that aren't smooth as a baby's butt, and maybe I can have some fun in the mud in a couple of months.
did find that the transfer case is not fond of 4lo.....i pushed the stick up as far as I could, then it slid back a little and ground when I gave it gas...if I held it in 4lo as far forward as it would go, sometimes it would catch and stay, but the first couple of times it wouldn't have it.....am I looking at linkage, fluid, or syncros?
Think 70 was a dana 20....but I could be wrong, it might be a np205, its bolted to what I believe is a saginaw 3 spd.
Anyone else use these old 4x4's as daily drivers with fun in the snow/mud rigs....or is it just me? (although, I have a backup vehicle, if this one takes a mound a little too hard)
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Old 12-16-2005, 10:40 AM   #2
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Re: tearing up the yard

I use mine as a daily driver. I have to shut the engine off to change gears in the np205 transfer case. Once its in gear though it stays there. Have fun!
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Old 12-16-2005, 12:15 PM   #3
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Re: tearing up the yard

I dont have any troubles grabbing 2hi or 4 hi at all, that is actually very slick and smooth....but 4lo.....very unhappy.....oh well, until the rebuild comes along, maybe I will just stick to 4hi (with 4.56 gears....is there really such a thing as 4HI?).
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1969 SS 350 Camaro Sold 2008
1970 3/4T K20, stock height with 33's, 250 I6, 3 on the tree, and locked front and rear 4.10's
1980 Chevy Malibu 2 dr Sold 2007
1993 Olds. Cutlass Ciera Wagon Traded 2006
2003 Saturn L200 w/5pd. D/D
My list spans 5 decades with One common thread.....GM!
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Old 12-18-2005, 10:43 PM   #4
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Re: tearing up the yard

I had a 72 K-5 Cheyenne Super that wouldn't stay in low range. Turned out the shifter boot was the problem. I just turned it upside down. That fixed it. Then I sold the Blazer. What an idiot!
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Old 12-18-2005, 10:45 PM   #5
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Re: tearing up the yard



You know you can't talk about having fun without posting some pics.
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Old 12-18-2005, 11:11 PM   #6
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Re: tearing up the yard

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Old 12-19-2005, 07:33 AM   #7
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Re: tearing up the yard

I have a 72 as a daily that isn't crazy about being in 4-low either.

Maybe you just need to find a way to use it in 4-low more often.
You know, get it broke in and all...

As already stated...you gotta throw us some pics here.
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Old 12-19-2005, 08:00 AM   #8
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Re: tearing up the yard

I`d look at the linkage adjustment or for an obstruction not allowing full engagement.The grinding is from partial engagement.You most likely have Dana20.With the high-gearing in first gear,you`re gonna want that 4lo.I think the lowest ratio for 1/2t is 4.10.

Do it again.
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Old 12-19-2005, 08:37 AM   #9
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Re: tearing up the yard

Quote:
Originally Posted by shelby987
...stuff deleted...

Anyone else use these old 4x4's as daily drivers with fun in the snow/mud rigs....or is it just me? (although, I have a backup vehicle, if this one takes a mound a little too hard)
I don't use mine on the roads in the winter...
but it gets plenty of use on the lakes.

Late one winter I had the chains on because of a late season snow storm. It always dumps a bunch when you have to get your house off the lake. So my buddy with the 94 in the background of the attached picture, who is a big talker says, "I'll lead the way, you follow my tracks".

So we take off across the lake that way. Him driving ahead of me. Me attached to my fish house. He gets stuck up to his mirrors in a drift. It was too late for me to avoid the same drift so I pulled through the drift, with fish house attached, around him. I get the house in the yard, unhook, then go pull his sorry rear end out of the snow.
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Old 12-19-2005, 08:47 AM   #10
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Re: tearing up the yard

Been driving my '71 K20 during our snow/ice fest locked in for the last week or so. No problems and she is running great!!!
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Old 12-19-2005, 12:13 PM   #11
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Re: tearing up the yard

Did you get the PS and Locking hubs in?

Also, when you come out, I have some decent rubber for you

Last edited by FormerMember; 12-19-2005 at 12:14 PM.
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Old 12-19-2005, 12:15 PM   #12
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Re: tearing up the yard

Quote:
Originally Posted by special-K
I`d look at the linkage adjustment or for an obstruction not allowing full engagement.The grinding is from partial engagement.You most likely have Dana20.With the high-gearing in first gear,you`re gonna want that 4lo.I think the lowest ratio for 1/2t is 4.10.

Do it again.
We want pictures!!
His is a 3/4T
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Old 12-19-2005, 01:13 PM   #13
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Re: tearing up the yard

unfortunately, I regret to say the p.s. setup and lockouts...have yet to be installed....I had two actual weekends worth of time off in november, and haven't had a single day off at work since, my last day off was the 27th, and with my backup driver being used by someone else....the few hours I have can't be spent pulling apart the vehicle that has to get me to work...on the plus side, full locked hubs all the time makes getting out of the driveway in 4hi and driving to work in 2hi a little bit easier!
spare tires huh?? do tell???
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1969 SS 350 Camaro Sold 2008
1970 3/4T K20, stock height with 33's, 250 I6, 3 on the tree, and locked front and rear 4.10's
1980 Chevy Malibu 2 dr Sold 2007
1993 Olds. Cutlass Ciera Wagon Traded 2006
2003 Saturn L200 w/5pd. D/D
My list spans 5 decades with One common thread.....GM!
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Old 12-19-2005, 01:25 PM   #14
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Re: tearing up the yard

Got a set of 33" on 17" Weld Racing rims. Bought them for my Ram, but they're too small...
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Old 12-19-2005, 09:37 PM   #15
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Re: tearing up the yard

Hey Grendel,thanks.I see that in the signature now.Doh?
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GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling)
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Old 12-19-2005, 09:48 PM   #16
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Re: tearing up the yard

Quote:
Originally Posted by special-K
Hey Grendel,thanks.I see that in the signature now.Doh?
No worries, I knew that because I sent him some K20 parts
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