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6.2L (L9H) Owners - Get all your questions answered here

RyanbabZ71
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ChevyTech77 Senior Enthusiast

ChevyTech77

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I've got the NHT, does any one know what's too hot for the tranny temp?

Automatic transmission fluid begins to break down somewhere in the area of 240-260° F.

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DanMan_S
DanMan_S

This is a video showing how the 6.2L sounds with headers and a corsa catback. The crew cab is my 6.2L, the 2005 extended cab is a 5.3L with a magnaflow muffler welded in.    

gonzoid
gonzoid

finished product  

2010LTZ4x4
2010LTZ4x4

Where did you get the 6.2L badge in you avatar?  Heres the info for the 6.2L badge Top Flight Reproductions is proud to announce the addition of the 6.2L emblem to our emblem product line. This embl

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Pdub_28 Enthusiast

Pdub_28

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Posted
I've got the NHT, does any one know what's too hot for the tranny temp?

Automatic transmission fluid begins to break down somewhere in the area of 240-260° F.

 

 

I've got the NHT, does any one know what's too hot for the tranny temp?

Automatic transmission fluid begins to break down somewhere in the area of 240-260° F.

 

 

Pdub_28 Enthusiast

Pdub_28

Posted
Posted

I may have missed it but does anyone have the crew cab 6.2l NH2 (3.73) 4x4 quarter mile times?

ChevyTech77 Senior Enthusiast

ChevyTech77

Posted
Posted
I may have missed it but does anyone have the crew cab 6.2l NH2 (3.73) 4x4 quarter mile times?

 

My best with my ex. cab 3.42 geared 6.2 is 14.6 at 96. That was with the traction control off, stock 18" tires and in 2WD so the tires were rolling for about 30' before hooking up. The e.t. to MPH kinda shows that as well.

Pdub_28 Enthusiast

Pdub_28

Posted
Posted
I may have missed it but does anyone have the crew cab 6.2l NH2 (3.73) 4x4 quarter mile times?

 

My best with my ex. cab 3.42 geared 6.2 is 14.6 at 96. That was with the traction control off, stock 18" tires and in 2WD so the tires were rolling for about 30' before hooking up. The e.t. to MPH kinda shows that as well.

 

That's pretty good!
Pdub_28 Enthusiast

Pdub_28

Posted
Posted
I've got the NHT, does any one know what's too hot for the tranny temp?

Automatic transmission fluid begins to break down somewhere in the area of 240-260° F.

 

Thanks! I'll watch for that 240 mark. Hopefully I never see it!!
PDYoung Enthusiast

PDYoung

Posted
Posted

Finally i made it on here.Hello everybody i started reading from the begining and had to get on here but it took me a while.Anyway i just bought a 2011 GMC Sierra SLT extended cab with the 6.2L with 3.73 rear.I test drove it on Friday and I'm picking it up today.I bought it from a guy in my state of Maryland of off ebay.Only has 7800 miles on it and it is in excellent condition.The previous owner put the Magnaflow muffler on it with custom stainless pipes from the cat on out,.i'm not sure why he just didn't get complete kit,but it sounds good.Can't sleep just waiting to go pick it up in 12 hours. I haven't had a decent vehicle in 30 plus years,but thanks to my divorce it's time to have some fun,yee haw.I'm going for the Edelbrock E-force supercharger in about a month,should really get this truck rolling.Edelbrock claims 515hp with 545lbs of torque at the flywheel,I figure it will be worth the 7k to buy and put it on.Has anybody installed one of these on this 6.2L motor? What does NHT mean?

RyanbabZ71 Senior Enthusiast

RyanbabZ71

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  • Author
Posted

NHT is an RPO pkg (3.73 rear end gears, higher tow rating, plus a few other items)

PDYoung Enthusiast

PDYoung

Posted
Posted

NHT is an RPO pkg (3.73 rear end gears, higher tow rating, plus a few other items)

 

Thanks
Z45 Senior Enthusiast

Z45

Posted
Posted

NHT is a option Group ordering code for MAX Trailering Package

 

NHT Max Trailering Pack, includes (L9H) Vortec 6.2L V8 SFI engine,

(G80) heavy-duty automatic locking rear differential, (Z85)

Handling/Trailering Suspension Package, (AXN) 9.5" (24.1 cm)

hybrid rear axle, (GT4) 3.73 rear axle ratio, (JD9) front and rear

disc brakes, (Z82) Trailering package, (T96) fog lamps, (N88) 17"

x 7.5" (43.2 cm x 19.1 cm) 6-lug polished cast aluminum wheels

and (QJP) P265/70R17 on-/off-road, blackwall tires

1 - Requires T*10753 or T*10543 models. TK10543 and TK10753

Models also include (NQH) electronic Autotrac transfer case.

Option content within this package may not be substituted or

deleted. Not available with (Z71) Off-Road Suspension Package.

PDYoung Enthusiast

PDYoung

Posted
Posted

 

$%28KGrHqR,%21i%21E-zqLJQUoBPwqscQkPw%7E%7E60_35.JPGHere is a picture of the truck i'm going to pick up in a couple of hours.It must have the NHT option on it too,from what you described,this truck has all that.More pictures to follow once i get it home amd get my camera out.

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RyanbabZ71 Senior Enthusiast

RyanbabZ71

Posted
  • Author
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The min nht trucks have some of the same equipment FYI

 

 

 

 

Ryan

 

 

PDYoung Enthusiast

PDYoung

Posted
Posted

Yes i do have the NHT-Max Trailering Package along with PDD-SLT CONVENIENCE PACKAGE, PCP-MOCHA STEEL METALLIC EDITION Which give you, MOCHA STEEL METALLIC PAINT,CHROME MIRROR CAPS AND DOOR HANDLES ,VXJ-3" TUBULAR CHROMED ASSIST STEPS, UVC-REAR VISION CAMERA SYSTEM, VAT-CHROME GRILL ,A48-POWER REAR SLIDING WINDOW, JL1-INTERGRATED TRAILER BRAKE CONTROLLER AND NZZ-SKID PLATE PACKAGE.This is one nice,powerful,well kept truck.There is only 7850 on the odometer.I scored this thing for 28,500.00. Does anybody think this was a good deal? I'll post some more pictures when the rain stops

RyanbabZ71 Senior Enthusiast

RyanbabZ71

Posted
  • Author
Posted

Yes i do have the NHT-Max Trailering Package along with PDD-SLT CONVENIENCE PACKAGE, PCP-MOCHA STEEL METALLIC EDITION Which give you, MOCHA STEEL METALLIC PAINT,CHROME MIRROR CAPS AND DOOR HANDLES ,VXJ-3" TUBULAR CHROMED ASSIST STEPS, UVC-REAR VISION CAMERA SYSTEM, VAT-CHROME GRILL ,A48-POWER REAR SLIDING WINDOW, JL1-INTERGRATED TRAILER BRAKE CONTROLLER AND NZZ-SKID PLATE PACKAGE.This is one nice,powerful,well kept truck.There is only 7850 on the odometer.I scored this thing for 28,500.00. Does anybody think this was a good deal? I'll post some more pictures when the rain stops

 

 

Sounds like a great deal.

becker87 Senior Enthusiast

becker87

Posted
Posted

Congrats on the new truck, you'll love it. With the NHT package it tows like a beast and pulls like a freight train.

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