1986 6.2 2wd "j" code - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Dieselburb86 · 09-25-2011, 02:35 PM

Hey I just aquired to use, from my dad, a 1986 GMC Half ton 2WD. It has 6.2 "j" code engine and a 700r4 tranny with 3.42 gears. Is this a good set up?

thirdstreettito · 09-25-2011, 02:40 PM

Very good! You should get minimum 15mpg city, but more like 18. And highway will be 22-32mpg, depending on tire size, speed, wind, hills, etc etc.

Great torque and good power. Should last forever!

Dieselburb86 · 09-26-2011, 01:43 PM

I do average 21 mpg, but thats going 65mph. I drive 25 miles one way to work each day. Im happy with that!

thirdstreettito · 09-26-2011, 01:45 PM

Any other questions feel free to ask!

rcbildr · 09-26-2011, 09:02 PM

Quote:

Originally Posted by Dieselburb86

Hey I just aquired to use, from my dad, a 1986 GMC Half ton 2WD. It has 6.2 "j" code engine and a 700r4 tranny with 3.42 gears. Is this a good set up?

Sweet!!!! 2wd or 4wd. I have an 83 4x4 with 3.73 gears and I was averaging high 20's for mileage. Unfortunately, I have to rob the engine out of it to get my suburban going. I'm hoping to get a 6.5L turbo diesel for it around tax return time.

**special-K** · 09-27-2011, 06:15 AM

That sounds like a nice set-up. Is this a Suburban,I assume? Nice!!

I've never heard of mileage over low to mid-twenties before. I've owned four 6.2s and never got better than 22 mpg. The 6.5TD gets 5 or less MPG. My '92 gets 15 mpg,it doesn't matter where or how I drive. Take it real easy and it gets 15.5 mpg. I feel that's great and well worth owning.

Dieselburb86 · 09-27-2011, 09:38 AM

It is great, but here in Minnesota diesel is $4.00 a gallon and the suburban has a 40 gallon tank. :-(

**special-K** · 09-27-2011, 03:23 PM

Well,you are getting 800 or more miles out of that and a 350 would get more like 400. So do the math,you're still ahead.

Dieselburb86 · 09-27-2011, 06:56 PM

That is true! For as rusty as it is, it is a fairly decent truck. The truck runs a heck of alot better than it looks! I do love the mileage. If I had the cash I would love to just purchase it from him and put a clean body on it, and do a mild restore to stock!

68Timber · 09-27-2011, 08:57 PM

One of the many reasons I love my M1009 - I don't have to stop for fuel every time I drive it, not by a loooong shot.

09-25-2011, 02:35 PM	#1
Dieselburb86 Registered User Join Date: Sep 2011 Location: MAPLEWOOD Posts: 58	1986 6.2 2wd "j" code Hey I just aquired to use, from my dad, a 1986 GMC Half ton 2WD. It has 6.2 "j" code engine and a 700r4 tranny with 3.42 gears. Is this a good set up?

09-25-2011, 02:40 PM	#2
thirdstreettito Resident of Here Join Date: May 2008 Location: Wesley Chapel, FL, USA Posts: 7,716	Re: 1986 6.2 2wd "j" code Very good! You should get minimum 15mpg city, but more like 18. And highway will be 22-32mpg, depending on tire size, speed, wind, hills, etc etc. Great torque and good power. Should last forever! __________________ ~Bradley~ 2004 Black GTO LS2/T56 too much to list Miss having a truck

09-26-2011, 01:43 PM	#3
Dieselburb86 Registered User Join Date: Sep 2011 Location: MAPLEWOOD Posts: 58	Re: 1986 6.2 2wd "j" code I do average 21 mpg, but thats going 65mph. I drive 25 miles one way to work each day. Im happy with that!

09-26-2011, 01:45 PM	#4
thirdstreettito Resident of Here Join Date: May 2008 Location: Wesley Chapel, FL, USA Posts: 7,716	Re: 1986 6.2 2wd "j" code Any other questions feel free to ask! __________________ ~Bradley~ 2004 Black GTO LS2/T56 too much to list Miss having a truck

09-27-2011, 06:15 AM	#6
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,851	Re: 1986 6.2 2wd "j" code That sounds like a nice set-up. Is this a Suburban,I assume? Nice!! I've never heard of mileage over low to mid-twenties before. I've owned four 6.2s and never got better than 22 mpg. The 6.5TD gets 5 or less MPG. My '92 gets 15 mpg,it doesn't matter where or how I drive. Take it real easy and it gets 15.5 mpg. I feel that's great and well worth owning. __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

09-27-2011, 09:38 AM	#7
Dieselburb86 Registered User Join Date: Sep 2011 Location: MAPLEWOOD Posts: 58	Re: 1986 6.2 2wd "j" code It is great, but here in Minnesota diesel is $4.00 a gallon and the suburban has a 40 gallon tank. :-(

09-27-2011, 03:23 PM	#8
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,851	Re: 1986 6.2 2wd "j" code Well,you are getting 800 or more miles out of that and a 350 would get more like 400. So do the math,you're still ahead. __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

09-27-2011, 06:56 PM	#9
Dieselburb86 Registered User Join Date: Sep 2011 Location: MAPLEWOOD Posts: 58	Re: 1986 6.2 2wd "j" code That is true! For as rusty as it is, it is a fairly decent truck. The truck runs a heck of alot better than it looks! I do love the mileage. If I had the cash I would love to just purchase it from him and put a clean body on it, and do a mild restore to stock!

09-27-2011, 08:57 PM	#10
68Timber I know the pieces fit Join Date: Nov 2007 Location: MONTGOMERY, AL Posts: 5,523	Re: 1986 6.2 2wd "j" code One of the many reasons I love my M1009 - I don't have to stop for fuel every time I drive it, not by a loooong shot. __________________ John 79 2wd Blazer (Bruiser) 85 M1009 Blazer (Sarge) build 74 Honda Z50 build



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