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-   -   85 GMC Sierra Classic 1 Ton Crew Cab (https://67-72chevytrucks.com/vboard/showthread.php?t=426463)

bikes&bowties 01-16-2012 01:07 AM

Re: 85 GMC Sierra Classic 1 Ton Crew Cab
 
I love the height of my truck on 37's. I'm 6'1" on a good day and it's no problem getting in and out. So I think 6" with 37's will have that full wheel well look and not be to high. Good for a driver!
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bikes&bowties 01-16-2012 01:09 AM

Re: 85 GMC Sierra Classic 1 Ton Crew Cab
 
I curled in a fender with a roughcountry 4" w/ 35's on my k10. And that sat a lot taller than a lot of 4" lifts..
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Dieselwrencher 01-16-2012 03:08 AM

Re: 85 GMC Sierra Classic 1 Ton Crew Cab
 
Matt, trucks's looking good. I also agree that 4" is not going to work with 37's. Maybe a ford super duty, but not on a square chevy!

1985-GMC 01-16-2012 11:14 PM

Re: 85 GMC Sierra Classic 1 Ton Crew Cab
 
Well I guess we'll see with my truck, though my front fenders already have wedges taken out and welded back together on the bottom corners.

Mattman2010 01-17-2012 10:43 AM

Re: 85 GMC Sierra Classic 1 Ton Crew Cab
 
Quote:

Originally Posted by bikes&bowties (Post 5125911)
I love the height of my truck on 37's. I'm 6'1" on a good day and it's no problem getting in and out. So I think 6" with 37's will have that full wheel well look and not be to high. Good for a driver!
Posted via Mobile Device

Im 6'4 so I doubt it will be much of a problem. I might end up putting some kind of step when I lift it because my dad probably wouldnt be able to get up into the truck and I plan on driving this all the time so if he needs a ride or something he would need to be able to get in.

Quote:

Originally Posted by Dieselwrencher (Post 5126051)
Matt, trucks's looking good. I also agree that 4" is not going to work with 37's. Maybe a ford super duty, but not on a square chevy!

Thanks man, I am happy with it. I really want to throw some big meats under it because I think it will look really good.

Quote:

Originally Posted by 1985-GMC (Post 5127921)
Well I guess we'll see with my truck, though my front fenders already have wedges taken out and welded back together on the bottom corners.

I probably wont be lifting the truck for a while. I should be getting my steering box today. But school starts today also and so I wont be able to put it on till tomorrow. I put dynamat under the heater box so I could at least get heat hooked up. I have a feeling that the dynamat is not going to quiet it down the engine noise that is coming through the firewall. It is more of a high freqency sound deadener so I will have to probably get some dynapad to quiet it down to a comfortable level.

joe231 01-17-2012 01:29 PM

Re: 85 GMC Sierra Classic 1 Ton Crew Cab
 
Does your truck have the underhood firewall insulation?
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Mattman2010 01-17-2012 02:03 PM

Re: 85 GMC Sierra Classic 1 Ton Crew Cab
 
No it does not. All the insulation I did have I removed to paint and it was old and fell apart.
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joe231 01-17-2012 03:28 PM

Re: 85 GMC Sierra Classic 1 Ton Crew Cab
 
Both of my diesels have an insulating panel that has insulation on the firewall and a rubber cover. It covers the entire firewall under the hood.
I'll snap a couple pics for you...
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Mattman2010 01-18-2012 09:45 AM

Re: 85 GMC Sierra Classic 1 Ton Crew Cab
 
Quote:

Originally Posted by joe231 (Post 5129157)
Both of my diesels have an insulating panel that has insulation on the firewall and a rubber cover. It covers the entire firewall under the hood.
I'll snap a couple pics for you...
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I've never seen one of those installed. I think I found them new somewhere I just can't think of where. I think maybe if I get some dynapad and put it under the dash too, then maybe on the hood and on the firewall right behind the motor that will quiet it down a lot.
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Dieselwrencher 01-18-2012 01:13 PM

Re: 85 GMC Sierra Classic 1 Ton Crew Cab
 
I'm pretty sure LMC sells them Matt.

joe231 01-18-2012 02:52 PM

Re: 85 GMC Sierra Classic 1 Ton Crew Cab
 
Here are some pics of my crew...

http://i805.photobucket.com/albums/y...1/fbccec6b.jpg

http://i805.photobucket.com/albums/y...1/2f68c264.jpg

http://i805.photobucket.com/albums/y...1/2e886def.jpg
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Mattman2010 01-20-2012 09:59 AM

Re: 85 GMC Sierra Classic 1 Ton Crew Cab
 
Thanks for the pictures joe! I did get dynamat installed under the heater box so I now have heat in the truck. This truck is long! I've parked in a few places at the college and it's kinda scary thinking I might not be able to get it out haha.the truck is still loud but I'm working on that. I have a leak between my transmission/tcase adapterso I'm going to pull the t-case tomorrow. I need to install my parking break cables. It sucks not being able to walk away from the truck when it rolls so easy.
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Dieselwrencher 01-20-2012 11:50 AM

Re: 85 GMC Sierra Classic 1 Ton Crew Cab
 
Get a wheel chalk. Shut the truck off put it in gear. Get out and place wheel chalks, go restart the truck and take it out of gear. Wala! I have to do this to my ford since the great napa ebrake cables stick!

Mattman2010 01-20-2012 12:19 PM

Re: 85 GMC Sierra Classic 1 Ton Crew Cab
 
Yeah that would work but I want to hook it up anyway. It will make life easier than starting and shutting off the motor all the time.
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Mattman2010 01-27-2012 05:34 PM

Re: 85 GMC Sierra Classic 1 Ton Crew Cab
 
Well I have been driving the truck to school for a while now. So far it works great, im kind of on the edge about the 6.2, it does great, but with the 4 speed manual it really seems to lack some power. I did get the transfer case dropped out of the truck and re sealed, but I have not drove the truck for 2 days so I am not sure if it is fixed now or not.

Dieselwrencher 01-27-2012 08:35 PM

Re: 85 GMC Sierra Classic 1 Ton Crew Cab
 
How well do you think that Dynamat helped it?

Mattman2010 01-27-2012 10:37 PM

Re: 85 GMC Sierra Classic 1 Ton Crew Cab
 
The dynamat did not kill the sound of the engine by a little there is still a lot of noise, but I have not finished covering all of what I want to. It did kill drone noise which I beleive was the firewall rattling from the sound. It got rid of the high pitched sound tho so it doesn't get as annoying.
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Mattman2010 02-10-2012 06:42 PM

Re: 85 GMC Sierra Classic 1 Ton Crew Cab
 
Nothing much with the truck lately. Been having some trouble starting it because I think my ignition switch is starting to go bad. At times I will turn the key and get nothing, turn it off and then turn it again and it will turn right over. I have decided that some more things are going to change on the truck. As you all probably know not to long ago I was loosing motivation on the truck when I keep replacing parts well I have came to the conclusion that sense I have as much money into the truck it is time to change things on it that I really want. One of those things is the drive train. The 6.2/Sm465/np208 is a good drive train, but it is just not the dream drive train that I have been wanting. So I have been talking to Dieselwrencher for a while and found out that he had a 94 12v Cummins that he was looking to sell. It will be a while before I will have it because I gotta pay him off and he is going to do some things to it. I then hope to have it swapped in by this summer. These are some pictures that he sent me. Ill let the pictures do the talking.

94 P-Pumped 12v out of a freight liner. Ill be getting the correct parts to be mating it up to a NV4500 and all of that as well.
http://i167.photobucket.com/albums/u...IMG_0308-1.jpg

http://i167.photobucket.com/albums/u...IMG_0309-1.jpg

http://i167.photobucket.com/albums/u...b/IMG_0310.jpg

joe231 02-10-2012 06:58 PM

Re: 85 GMC Sierra Classic 1 Ton Crew Cab
 
Ah man,
Another cummins swap *yawn*







:lol:
Just kidding!!!

That will be sweet!! :metal:
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Mattman2010 02-10-2012 07:55 PM

Re: 85 GMC Sierra Classic 1 Ton Crew Cab
 
Haha yup another one of those cummins swaps. There must be a reason for this madness haha. The 6.2 will probably end up turboed and stuck in my k10. I must just like diesels haha.
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1985-GMC 02-10-2012 09:45 PM

Re: 85 GMC Sierra Classic 1 Ton Crew Cab
 
Nice!

Mattman2010 02-10-2012 11:54 PM

Re: 85 GMC Sierra Classic 1 Ton Crew Cab
 
Quote:

Originally Posted by 1985-GMC (Post 5180161)
Nice!

Thanks man! I cant wait. Depending on what I find for a NV4500 I might end up finding a dodge 2wd one and run it as 2wd for a while and then find a divorced 205. But I think my best bet would be to find a GM NV4500 and put a NP208 behind it. That will allow me to hook up the speedo on the np208. If I went divorced I am not sure how I would end up hooking up the speedo.

1985-GMC 02-11-2012 12:34 AM

Re: 85 GMC Sierra Classic 1 Ton Crew Cab
 
The same way...

Mattman2010 02-11-2012 12:56 AM

Re: 85 GMC Sierra Classic 1 Ton Crew Cab
 
I would need a longer cable tho wouldnt I?

1985-GMC 02-11-2012 01:34 AM

Re: 85 GMC Sierra Classic 1 Ton Crew Cab
 
They make cables as long as you want, just cut it to length.

STOCKISH 02-25-2012 07:46 PM

Re: 85 GMC Sierra Classic 1 Ton Crew Cab
 
Looking forward to the swap!

Mattman2010 02-26-2012 09:51 AM

Re: 85 GMC Sierra Classic 1 Ton Crew Cab
 
Quote:

Originally Posted by 1972SuperCheyenne (Post 5212345)
Looking forward to the swap!

Thanks man I really am too!
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Dieselwrencher 03-05-2012 05:49 PM

Re: 85 GMC Sierra Classic 1 Ton Crew Cab
 
Here are a couple of pics for you on those clearance lights you were asking me about.

http://i181.photobucket.com/albums/x...IMG_0346-2.jpg
http://i181.photobucket.com/albums/x...IMG_0345-2.jpg

They fit on the roof better than I thought they would.

Mattman2010 03-05-2012 08:59 PM

Re: 85 GMC Sierra Classic 1 Ton Crew Cab
 
I really like those, I think they will look great on my white truck. I will take a set, add it to the bill. :lol:

y5mgisi 03-05-2012 09:40 PM

Re: 85 GMC Sierra Classic 1 Ton Crew Cab
 
Man! I want a cummins soo bad!

Mattman2010 03-05-2012 11:03 PM

Re: 85 GMC Sierra Classic 1 Ton Crew Cab
 
Quote:

Originally Posted by y5mgisi (Post 5232887)
Man! I want a cummins soo bad!

Me too! :lol: Its taking me a while to pay it off.

yjheep 03-06-2012 10:18 AM

Re: 85 GMC Sierra Classic 1 Ton Crew Cab
 
Quote:

Originally Posted by Mattman2010 (Post 5125636)
I dont think a 4 inch lift will clear enough for any flex if you drive offroad at all. I don't want to cut fenders. It might get annoying jumping in there all the time but I think I can manage.
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I ran 6" lift with 35"s and had about 3/4" between tire and front fender at full lock with flex out on my bump stops. I'm running 8" lift now and I'll have my new bfg baja 37" hummer's on it in the next week or so, if you would like pictures on my crew. I think if you want to run it offroad you would get in the fenders with 6" and 37s. Also if you like the lifted look, it takes more lift to bring it out on 22' Long crew IMO.
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Mattman2010 03-06-2012 12:53 PM

Re: 85 GMC Sierra Classic 1 Ton Crew Cab
 
Yeah I'd like to see some pictures. I won't be offroading much, basically driving into a field to get a deer or some fire wood. It will mostly stay on the road and act as the dd/tow pig. So 6 inches will be fine for me.
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Mattman2010 03-06-2012 06:41 PM

Re: 85 GMC Sierra Classic 1 Ton Crew Cab
 
http://i167.photobucket.com/albums/u...b/2405792e.jpg

So I figured I would update this thread with the plans I have for this truck. As I would like to here peoples opinions on what they think.

-12V Cummins
-NV4500 - Going to look for either a 2wd Dodge one or a 4x4 GM version, if I go with a 2wd I will find a divorced 205, if I find a GM version I will probably run a NP208 till I can afford to adapt a np205 to it in some way.
-6 Inch rough country lift kit, with a shackle flip in the back. I want to keep my stock 1 ton springs and don't want to have blocks in the rear.
-16.5 Inch wagon wheels painted or powder coated black
-37 inch hummer tires

One thing I am wondering about is the exhaust, I am really thinking about an 8" stack in the bed. The truck wont smoke that much when I get it going but at some point it will. I have always kinda liked stacks but hate how they take up space in the bed. But with the 8 foot bed i think the little space it will take up wont effect hauling anything.

Also the truck has been dubbed "THE TANK" by my friends. They are not around trucks all that much and they love it :lol:

yjheep 03-06-2012 10:35 PM

Re: 85 GMC Sierra Classic 1 Ton Crew Cab
 
I prolly missed it in here someplace, but what gears do you have
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Mattman2010 03-06-2012 11:12 PM

Re: 85 GMC Sierra Classic 1 Ton Crew Cab
 
4.10s

yjheep 03-06-2012 11:34 PM

Re: 85 GMC Sierra Classic 1 Ton Crew Cab
 
Quote:

Originally Posted by Mattman2010 (Post 5235430)
4.10s

Good, youl be in good shape with the 4.10s and nv4500.

Personally I would go 2wheel drive trans into divorce 205. Gives you much better drive line angles. Also for the "just in case" I put mine in the center of the truck so my front and rear drive shafts are the same size. Ever blow a rear drive shaft or u joint out, just unbolt the front and stick it in the rear and head on down the highway. Not to mention the shaft length is manageable and does not require a carrier bearing, also a huge pluss in my book.

As far as the 12v. Go for it!! I'm doing one now
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1985-GMC 03-06-2012 11:37 PM

Re: 85 GMC Sierra Classic 1 Ton Crew Cab
 
Nice! Mine was dubbed "The Boat". :lol:

Mattman2010 03-07-2012 09:19 AM

Re: 85 GMC Sierra Classic 1 Ton Crew Cab
 
Quote:

Originally Posted by yjheep (Post 5235494)
Good, youl be in good shape with the 4.10s and nv4500.

Personally I would go 2wheel drive trans into divorce 205. Gives you much better drive line angles. Also for the "just in case" I put mine in the center of the truck so my front and rear drive shafts are the same size. Ever blow a rear drive shaft or u joint out, just unbolt the front and stick it in the rear and head on down the highway. Not to mention the shaft length is manageable and does not require a carrier bearing, also a huge pluss in my book.

As far as the 12v. Go for it!! I'm doing one now
Posted via Mobile Device

Yeah I think the 2wd trans is what I am going to do because I can find them for about $500 and it seems any of the other ones are $700+. I figured I could run the truck as a 2wd for a while til I find the transfercase. As for putting it in the middle that is a good idea. It would be nice to have the same size drive shafts but I am not sure that the yokes on my D44 and D70 are the same.

As for the 12v its happening, just gotta pay it off then go get it.

Quote:

Originally Posted by 1985-GMC (Post 5235507)
Nice! Mine was dubbed "The Boat". :lol:

:lol:

yjheep 03-07-2012 09:53 AM

Re: 85 GMC Sierra Classic 1 Ton Crew Cab
 
might be right on that dana 70 is proly 1350 44 is proly 1310. You can buy 1350 yokes for your 44, there around 100 bucks, I would double check your yokes obviously.
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