1988 Crew Cab Build

[JPalmer81]

Originally Posted by Mattman2010

With 4.10 gears and 33's the 6.2 will be screaming. Most of the people I know that have a 6.2 and get good mpg are running 3.08 gears. While the power is at the higher end of the RPM the mpg are at the lower end of the RPM. I think the step down to 3.73's would be good with the fact that you wont be pulling the trailer all the time.

It already gets good mileage, even with the 4.10's i am at 18-21 mpg's and that is mixed stop and go with some longer trips in between, so I am happy as it is already, but would like to lower the RPM's a bit on the freeway.

[Mattman2010]

I must have not been very lucky, I was getting 8 to 10. I think I was always getting on it though cause it seemed like my truck took forever to get up to speed. Im really interested to see how well my 6.2 and 465 do in my k10. It has 3.73s and a lot lighter than my crew cab. Dont get me wrong I probably seem like I hate the 6.2s but I love them, they are good I guess they just dont bring to the table what I was looking for.

[JPalmer81]

WOW, only 8-10??? Somethings not right with that. This is my first 6.2, but I have done a crazy amount of research on these things and have never heard of one only getting 8-10 mpg's. I literally scream down the highway and still get 18 at the least, and that is in a 4x4 1 ton crew! Might want to get that thing checked out. Good fuel economy is what 6.2's are known for, and that is usually the top reason people stick with them.

[Mattman2010]

Originally Posted by JPalmer81

WOW, only 8-10??? Somethings not right with that. This is my first 6.2, but I have done a crazy amount of research on these things and have never heard of one only getting 8-10 mpg's. I literally scream down the highway and still get 18 at the least, and that is in a 4x4 1 ton crew! Might want to get that thing checked out. Good fuel economy is what 6.2's are known for, and that is usually the top reason people stick with them.

That's why I traded my 454 for the 6.2. For the milage. But after the first couple times at the gas station I was wondering why I traded my 454 off. Mines a 4x4 1 ton minus the Dana 60 front axle. The guy I got it from said he was getting what you were getting. I never really calculated it, but it seemed like I never went past a fueling station.
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[JPalmer81]

I literally don't even think that is possible to get that low of mpg's without something being noticeably wrong with the way the truck is running. You might wanna calculate the next tank out and see what you are really getting.

[Mattman2010]

I would but the 6.2 and the crew cab won't be seeing eachother anymore. 6.2 went into the k10 and a 5.9 12v is going in the crew.
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[JPalmer81]

Originally Posted by Mattman2010

I would but the 6.2 and the crew cab won't be seeing eachother anymore. 6.2 went into the k10 and a 5.9 12v is going in the crew.
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I knew that , how is the build coming man?

[Mattman2010]

Originally Posted by JPalmer81

I knew that , how is the build coming man?

No where , been on a broken ankle for 5 weeks now. Cant work so I cant get the cummins paid of yet so its going to take longer.

[JPalmer81]

Originally Posted by Mattman2010

No where , been on a broken ankle for 5 weeks now. Cant work so I cant get the cummins paid of yet so its going to take longer.

I think I knew that you got hurt too Think I read that in your thread. I hope you get better soon so I can see you build your truck! BTW I might be moving close to Pittsburg to go to the University there, they have a really good diesel program. Not set in stone though.

[Mattman2010]

Originally Posted by JPalmer81

I think I knew that you got hurt too Think I read that in your thread. I hope you get better soon so I can see you build your truck! BTW I might be moving close to Pittsburg to go to the University there, they have a really good diesel program. Not set in stone though.

yeah Ive been reading to much stuff about cummins swaps the past 5 weeks im itching to get mine going. That is a pretty far move for you. But yes for as small as the college is, they do have some very good programs. Ive seen the diesel room at the school and they got some cool stuff to tear apart. Im pretty sure they have a 12v thats never been used other than teaching purposes. It would be cool to have another crew cab around here. There is one other one but its a slammed dually.

[JPalmer81]

That is a good thing about the army, they take care of all the moving expenses. Me and the wifey are still trying to decide if we want to leave Alaska, it is pretty awesome up there, but very far from home

[Mattman2010]

Well thats nice, Ive always wanted to go up to alaska, seems like it would be cool.

[JPalmer81]

Everybody should try to make a trip to Alaska at least once in their lifetime, you won't believe your eyes when you get up here, it is very beautiful, and a good place to live if you like off roading, because we do it up here for about 6 months out of the year! It was weird when I first got up here in 2011 cause all the streets were just covered in snow, and where I am from that means that every thing is shut down and hardly no one is out on the road. In Alaska people are driving normal speed acting like no big deal, business as usual, takes a while to get used to.

[Mattman2010]

Hunting is one thing i like doing, and I want to get into 4 wheeling (got a rusted out crew cab I'm going to build after the tow pig is done). Sounds like my kinda place haha.
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[JPalmer81]

Yeah, lots of big animals up here to hunt and to be hunted by... when u put your Cummins in ur truck you should make a road trip up here to test her out

[Mattman2010]

Haha yes there are. That would be a fun drive. But with the luck of that truck so far I think I'd need to test it out closer to home haha. Plus I need to find a d60 shortly after I get it in so I don't bend my d44
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[JPalmer81]

Originally Posted by Mattman2010

Haha yes there are. That would be a fun drive. But with the luck of that truck so far I think I'd need to test it out closer to home haha. Plus I need to find a d60 shortly after I get it in so I don't bend my d44
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How does your dually only have a 44 in it?

[joe231]

18-21MPG?
You must drive different than me...
I get 14-18 with 4.10's, 4L80e, and 32.83" tall tires. And you don't have overdrive, correct?
I drove mine to Fairbanks and back, I averaged @15-16mpg.
I did find out that I have a banks 3" monster exhaust, just missing the tail pipe.
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[Mattman2010]

Originally Posted by JPalmer81

How does your dually only have a 44 in it?

Cause it was a 2wd when I bought it. Several brackets later and a rebuilt $50 axle and I had a 4x4 truck. I keep switching between dually and srw and with the price of tires I'm thinking it's going to stay srw and run 6 inches of lift and 37 inch hummer tires. In the future I want it to be a dually. But school and stuff takes my money, so I gotta go cheap for now.
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[JPalmer81]

Originally Posted by joe231

18-21MPG?
You must drive different than me...
I get 14-18 with 4.10's, 4L80e, and 32.83" tall tires. And you don't have overdrive, correct?
I drove mine to Fairbanks and back, I averaged @15-16mpg.
I did find out that I have a banks 3" monster exhaust, just missing the tail pipe.
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My wife complains that I drive like a geezer

I have not actually got 21 MPG's, that is from the mouth of the PO when I was looking at it before I bought it. But on the tank I went through when I was home I got 18.

And yes, that is with the TH400, no overdrive, 31 inch tall tires, and all stock with an exhaust leak, and no tail pipe on either muffler, the exhaust is pretty much shot on it.

My wife must be right, I AM that guy everybody hates to get stuck behind!

What size is the monster exhaust on it?

[JPalmer81]

Originally Posted by Mattman2010

Cause it was a 2wd when I bought it. Several brackets later and a rebuilt $50 axle and I had a 4x4 truck. I keep switching between dually and srw and with the price of tires I'm thinking it's going to stay srw and run 6 inches of lift and 37 inch hummer tires. In the future I want it to be a dually. But school and stuff takes my money, so I gotta go cheap for now.
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I see, a little nip/tuck action going on. Up here there is a 1 ton rear dually axle for $300 and the front D60 for $600 on CL, not bad.

[joe231]

Originally Posted by JPalmer81

My wife complains that I drive like a geezer

I have not actually got 21 MPG's, that is from the mouth of the PO when I was looking at it before I bought it. But on the tank I went through when I was home I got 18.

And yes, that is with the TH400, no overdrive, my wife must be right, I AM that guy everybody hates to get stuck behind!

What size is the monster exhaust on it?

Lol

I like to make mine smoke every chance I get...
I was routinely hitting 80-85mph on the trip
To Fairbanks lol

It's 3" exhaust, I'll have to look at the part number again...
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[JPalmer81]

Originally Posted by joe231

Lol

I like to make mine smoke every chance I get...
I was routinely hitting 80-85mph on the trip
To Fairbanks lol

It's 3" exhaust, I'll have to look at the part number again...
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I have never made mine smoke yet! I swear I am an 85 year old stuck in a 30 year olds body!

That is a sweet deal on the exhaust, did you ever get that turbo? There was one off a 6.5 on CL not too long ago for like $300, think I PM'd u, but can't remember.

[Mattman2010]

Originally Posted by JPalmer81

I see, a little nip/tuck action going on. Up here there is a 1 ton rear dually axle for $300 and the front D60 for $600 on CL, not bad.

Oh yeah, so far had my truck for 2 years and it ran for 4 months, had a brake line exload and catch on fire. No real damage, then next thing I know I'm stuffing the 6.2 in my k10 and my crew cab is setting stripped apart... Rear axles are going for about $150 to $200 d60 fronts are $1000+. It's been fun, but I have 3 times more money into it than I planned haha
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[JPalmer81]

Originally Posted by Mattman2010

Oh yeah, so far had my truck for 2 years and it ran for 4 months, had a brake line exload and catch on fire. No real damage, then next thing I know I'm stuffing the 6.2 in my k10 and my crew cab is setting stripped apart... Rear axles are going for about $150 to $200 d60 fronts are $1000+. It's been fun, but I have 3 times more money into it than I planned haha
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I think that is all our stories, cause once you starting digging into these things you find more and more you have to fix...