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Old 08-31-2015, 07:16 PM   #21
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Originally Posted by Rustic Eagle View Post
I would tend to agree with the older GM 4-speed transmissions (like my '02' 4-speed/4.10).

Thinking out-loud here...., I would think with the newer GM 6-speed transmissions a 3.73 gear would be plenty deep, possibly under some shifting conditions even similar (output ratio) to the old 4-speed/4.10.

Bob
I will see if I still have it, but a member over on Articles - GM-Trucks.com - The Ultimate GM Truck and SUV Community - GM-Trucks.com put together a chart comparing the different gear sets. A 6spd/3.42 combo was actually more like a 4spd/4.10 combo from what I remember.



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Originally Posted by WrenZ71 View Post
I agree with you the 99 suburban is a 4 speed

The newer 6 speeds don't need as low of gears but in pulling conditions 3:73's would be nice.However gm did away with 3:73's in there 1/2 tons unless you get one with a 6.0 vortec max or 6.2 max trailering package.Im unsure on gearing as far as the 15+ body styles goes.

The 3/4 tons and 1 tons with the 6.0 had options for 3:73's or 4:10's.
The '14- 1500's with the Max Tow got 3.73's with either the 5.3L or the 6.2L motor. For '15, the Max Tow is a 3.73 with the 5.3L, but the 6.2L gets a set of 3.42's since it has the 8spd trans now.

HD's had the choice until the new '15 model came out, which they have only 4.10's now. The '13 had 3.73 standard, 4.10 as an option. '14 had 4.10 standard, with the 3.73's being optional.
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Old 08-31-2015, 07:48 PM   #22
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Originally Posted by need-a-vacation View Post
I will see if I still have it, but a member ......snip....... put together a chart comparing the different gear sets. A 6spd/3.42 combo was actually more like a 4spd/4.10 combo from what I remember.......snip
need-a-vacation,

I found an 8-speed vs 6-speed gear ratio comparison chart (below) at the web site you referenced......, but if you find the 4-speed vs 6-speed please post it, would also be of interest.

"Gear ratio comparison for 8 speed with 3.23 vs 6 speed with 3.42.

8 speed / 6 speed

3.23 / 3.42

First: 14.73 / 13.78
Second: 9.59 / 8.07
Third: 6.72 / 5.23
Fourth: 5.46 / 3.93
Fifth: 4.10 / 2.91
Sixth: 3.23 / 2.29
Seventh: 2.75 / N/A
Eighth 2.10 / N/A
Reverse: 12.34 / 10.47"

Source: (enter "gear ratio comparison" in 'Find words' box): Search Form - GM-Trucks.com

I couldn't get a "link" to bring up the actual "chart" source page.

Bob
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Old 09-07-2015, 06:48 PM   #23
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The Tahoe will make it a pleasure to tow the 20e and you are prepared when it is time to upgrade the tv to lets say a 23b
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Old 09-21-2015, 09:23 PM   #24
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Quote:
Originally Posted by Rustic Eagle View Post
need-a-vacation,

I found an 8-speed vs 6-speed gear ratio comparison chart (below) at the web site you referenced......, but if you find the 4-speed vs 6-speed please post it, would also be of interest.

"Gear ratio comparison for 8 speed with 3.23 vs 6 speed with 3.42.

8 speed / 6 speed

3.23 / 3.42

First: 14.73 / 13.78
Second: 9.59 / 8.07
Third: 6.72 / 5.23
Fourth: 5.46 / 3.93
Fifth: 4.10 / 2.91
Sixth: 3.23 / 2.29
Seventh: 2.75 / N/A
Eighth 2.10 / N/A
Reverse: 12.34 / 10.47"

Source: (enter "gear ratio comparison" in 'Find words' box): Search Form - GM-Trucks.com

I couldn't get a "link" to bring up the actual "chart" source page.

Bob
Bob,

Found the GM 4spd vs 6spd chart that was posted by Music over on GM-Trucks!!! This was for the GMT 900 ('07-'13) models.

Hope this helps!!!
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'16 Jay Flight 32 BHDS ELITE 32 BHDS MODS Reese DC HP

WDH SET UP. HOW A WDH WORKS. CAT SCALE HOW TO.
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Old 09-21-2015, 09:39 PM   #25
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Too technical for me. Will just say that towing a JayFeather 221 with a 2013 Tahoe (has trailering package) is very effective.
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Old 09-23-2015, 09:54 PM   #26
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need-a-vacation,

Thanks for the follow-up

Bob
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Old 09-23-2015, 10:55 PM   #27
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Originally Posted by Rustic Eagle View Post
need-a-vacation,

Thanks for the follow-up

Bob
YW!!!!

Just had to remember where to find it.... Lol

Luckily I still have the pm from Music on GM-Trucks!!! Didn't think to look there at first.
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