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3:08 gears in 6.2 ...huh?

Luke Martin

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Luke Martin Enthusiast

Luke Martin

Posted
Posted

Emailed a dealer about a 6.2 asking what was on the lot with 3:42 since the don't actually publish the actual window sticker.  He said they didn't have any 3:42 only 3:08. 

 

Is that even a gear option on the 6.2 I thought it was 3:23 or 3:42. 

 

This is more fore my knowledge thanks!

2017Darkness Enthusiast

2017Darkness

Posted
Posted

He may be looking at the standard equipment....Before 6.2 is added...it is only available with 3.23 in 4x4

 

NOPE, DISREGARD...ITS A 2WD!!

Paintor Enthusiast

Paintor

Posted
Posted

GM aint what it used to be. Use their website and build a truck with a 6.2. When you click on the end to view summary tells you its a 5.3 and what a 5.3 comes with.

JimCost2014 Senior Enthusiast

JimCost2014

Posted
Posted
2 hours ago, Luke Martin said:

Emailed a dealer about a 6.2 asking what was on the lot with 3:42 since the don't actually publish the actual window sticker.  He said they didn't have any 3:42 only 3:08. 

 

Is that even a gear option on the 6.2 I thought it was 3:23 or 3:42. 

 

This is more fore my knowledge thanks!

3.42 for the max tow package, 3.23 for regular tow package with the 6.2.

L86 All Terrain Senior Enthusiast

L86 All Terrain

Posted
Posted

There is no such thing as a 6.2L with 3.08's. All 2015+ 8L90e 6.2L's have either the 3.23 or 3.42 (3.42 in max tow trim only) as noted previously by Jim. As far as the gearing goes, you wont overly notice a difference between the 3.23 and 3.42 final drive with the 8 speed trans, maybe 100rpm at cruise speeds. If you load it to max capacity you might, but not anything less. I would seek out a 3.42 if I were installing tires larger than 33". Guys that want sport trucks opt for the 3.42 but I think it would only translate to maybe 1 or 2 tenths on your time slip. Final drive ratio really made a difference with the 3-4 speed automatics like the 4L60e but with 8-10 transmission gears, it becomes largely less important than the old days unless you are in a lifted rig. Varying your final drive ratio too much with these modern 8SPD+ transmissions can really mess up the shift points and drivability with the trans because the gear ratios in the trans are set up for a specific gearing, doing something drastic like going from a stock 3.23 to a Yukon 4.56 gear can make 1st gear useless and your cruising RPM as high as 2100rpm. Matching ratios to tire size to engine output and transmission gearing is a complicated process where you should consult a gearing expert before getting too deep into it. 

Yondu Enthusiast

Yondu

Posted
Posted

2014s had 3.08 gears as an option, I believe.   I thought they were 3.42 for max tow, but the 5.3 is 3.73 gears max tow.  

 

6 speed only.

draperfish Enthusiast

draperfish

Posted
Posted

The online window stickers for all the trucks I've looked at online are generic and don't show all the included options, the online window sticker for my truck showed 3.08 gears for the 5.3 under standard equipment and showed the 6.2 option, the actual window sticker shows the 3.23 ratio as an included option. I didn't think the 3.08 was an option with the 6.2.

JimCost2014 Senior Enthusiast

JimCost2014

Posted
Posted
6 hours ago, Yondu said:

2014s had 3.08 gears as an option, I believe.   I thought they were 3.42 for max tow, but the 5.3 is 3.73 gears max tow.  

 

6 speed only.

2014 had the 3.42 and 3.73 with 6.2 and the 6 speed. Great combo, trucks were fast!!!

 

2017Darkness Enthusiast

2017Darkness

Posted
Posted
17 hours ago, L86 All Terrain said:

There is no such thing as a 6.2L with 3.08's. All 2015+ 8L90e 6.2L's have either the 3.23 or 3.42 (3.42 in max tow trim only) as noted previously by Jim. As far as the gearing goes, you wont overly notice a difference between the 3.23 and 3.42 final drive with the 8 speed trans, maybe 100rpm at cruise speeds. If you load it to max capacity you might, but not anything less. I would seek out a 3.42 if I were installing tires larger than 33". Guys that want sport trucks opt for the 3.42 but I think it would only translate to maybe 1 or 2 tenths on your time slip. Final drive ratio really made a difference with the 3-4 speed automatics like the 4L60e but with 8-10 transmission gears, it becomes largely less important than the old days unless you are in a lifted rig. Varying your final drive ratio too much with these modern 8SPD+ transmissions can really mess up the shift points and drivability with the trans because the gear ratios in the trans are set up for a specific gearing, doing something drastic like going from a stock 3.23 to a Yukon 4.56 gear can make 1st gear useless and your cruising RPM as high as 2100rpm. Matching ratios to tire size to engine output and transmission gearing is a complicated process where you should consult a gearing expert before getting too deep into it. 

You can get a 6.2 with 3.08's...in 2wd

L86 All Terrain Senior Enthusiast

L86 All Terrain

Posted
Posted
6 minutes ago, 2017Darkness said:

You can get a 6.2 with 3.08's...in 2wd

Interesting, I wonder why. We don't sell 2wd trucks in my part of Canada. Maybe in Toronto or Vancouver but I haven't seen one on the lots up here since the 1990's. I didn't even think you could spec a 6.2L in a 2WD as you need top trim level, can you buy a LTZ 2WD or Denali 2WD down South? 

2017Darkness Enthusiast

2017Darkness

Posted
Posted
1 minute ago, L86 All Terrain said:

Interesting, I wonder why. We don't sell 2wd trucks in my part of Canada. Maybe in Toronto or Vancouver but I haven't seen one on the lots up here since the 1990's. I didn't even think you could spec a 6.2L in a 2WD as you need top trim level, can you buy a LTZ 2WD or Denali 2WD down South? 

Yep, if you buy one down south, you better sell it down south. 

L86 All Terrain Senior Enthusiast

L86 All Terrain

Posted
Posted
3 minutes ago, 2017Darkness said:

Yep, if you buy one down south, you better sell it down south. 

You wont have to worry about me buying a 2wd pickup up here lol. That would be a BAD idea. Cheers man, thanks for catching my mistake. 

rjpoog1989 Enthusiast

rjpoog1989

Posted
Posted
18 hours ago, JimCost2014 said:

2014 had the 3.42 and 3.73 with 6.2 and the 6 speed. Great combo, trucks were fast!!!

 

I thought mine had 3.23 and is 14 6 speed. I could be missremembering though. It’s not max row so it’s the lower of the two.

  • 7 months later...
wmeadow New Member

wmeadow

Posted
Posted

I know this is an old thread, but wanted to add one more data point.   I have a 2015 1500 with the 6.2 and 4x4.

 

When re-gearing, the gears I pulled out were definitely 3.08. Had to call East Coast Gears to have them send me out the conversion kit (new carrier and ring spacer) for the new gears, that only needs to be done for the 3.08.  I was very surprised, because the spec sheet from the dealer when I bought it says 3.23 gears.

JimCost2014 Senior Enthusiast

JimCost2014

Posted
Posted
10 hours ago, wmeadow said:

I know this is an old thread, but wanted to add one more data point.   I have a 2015 1500 with the 6.2 and 4x4.

 

When re-gearing, the gears I pulled out were definitely 3.08. Had to call East Coast Gears to have them send me out the conversion kit (new carrier and ring spacer) for the new gears, that only needs to be done for the 3.08.  I was very surprised, because the spec sheet from the dealer when I bought it says 3.23 gears.

Welcome to the site. 

 

Check your glove box and see what you have for the rear end code on the build sticker. 

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