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 > 3.42 gears for TC

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TxGearhead

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Posted: 05/26/22 05:21pm Link  |  Quote  |  Print  |  Notify Moderator

I would seriously consider a gasser.


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jimh406

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Posted: 05/26/22 06:43pm Link  |  Quote  |  Print  |  Notify Moderator

TxGearhead wrote:

I would seriously consider a gasser.


I agree unless range is a consideration.


'10 Ford F-450, 6.4, 4.30, 4x4, 14,500 GVWR, '06 Host Rainer 950 Dbl Slide, Torklift Talon tiedowns, Glow Steps, and Fastguns. Bilstein 4600s, Firestone Air Bags, Toyo M655 225/19.5 Gs, Curt front hitch, Energy Suspension bump stops.


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Posted: 05/26/22 09:18pm Link  |  Quote  |  Print  |  Notify Moderator

LL8 wrote:

Thanks for all the replies folks. Learned a lot


Stay tuned LL8. I suspect that this could be another hundred or so post thread.


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trail-explorer

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Posted: 06/02/22 12:45pm Link  |  Quote  |  Print  |  Notify Moderator

Don't overthink it.

It's a Duramax. It will be fine. If it wasn't fine, then the factory wouldn't offer only one gear ratio.

Duramax trucks used to have 3.73 as the only gearing, but that may have changed when the 10 speed was introduced.

Grit dog

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Posted: 06/02/22 02:16pm Link  |  Quote  |  Print  |  Notify Moderator

ssthrd wrote:

LL8 wrote:

Thanks for all the replies folks. Learned a lot


Stay tuned LL8. I suspect that this could be another hundred or so post thread.


Naw, I doubt it. He's so over trucked with a new Dmax, both on the power and payload that not even the strictest of weight cops will likely try to argue the point. (Although I've been wrong about that before on here, lol)

I just can't figure out how a guy who has owned 2 other top of the line diesel trucks, both with small lightweight campers on them would be asking about whether a new truck that has even more power and every bit as capable from a payload standpoint would be an issue for an equally small camper....


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mkirsch

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Posted: 06/03/22 10:14am Link  |  Quote  |  Print  |  Notify Moderator

Grit dog wrote:

I just can't figure out how a guy who has owned 2 other top of the line diesel trucks, both with small lightweight campers on them would be asking about whether a new truck that has even more power and every bit as capable from a payload standpoint would be an issue for an equally small camper....


Oh that's easy. He's stuck in the 1970's, the days of, "Ya can't tow nothin' without 4.10 gears."


Putting 10-ply tires on half ton trucks since aught-four.

3 tons

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Posted: 06/04/22 07:24pm Link  |  Quote  |  Print  |  Notify Moderator

Huh?? Time now to recognize the ‘new reality’ - Nowadays (21st century…) with the final three gears ‘as overdrives’ how is it that a 4:10 any kind of obstacle!!

3 tons - with a DRW 4:10, 6 speed, two final gears are both overdrives, purrs at 70 mph

Grit dog

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Posted: 06/05/22 06:04pm Link  |  Quote  |  Print  |  Notify Moderator

3 tons wrote:

Huh?? Time now to recognize the ‘new reality’ - Nowadays (21st century…) with the final three gears ‘as overdrives’ how is it that a 4:10 any kind of obstacle!!

3 tons - with a DRW 4:10, 6 speed, two final gears are both overdrives, purrs at 70 mph


And with twice as deep of first gear as old transmissions and 7 gears from low to direct, the bottom end of the gearing will do what usta take 4.10s.
So, huh?

(Not that you’re wrong, new crop of pickups are putting down so much power and with 10speed transmissions they can comfortably pull tall gears with pretty big loads or really pull houses off their foundations with short gears and run 90mph+ bobtail at comfortable rpm’s. )

valhalla360

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Posted: 06/06/22 05:34am Link  |  Quote  |  Print  |  Notify Moderator

3 tons wrote:

Huh?? Time now to recognize the ‘new reality’ - Nowadays (21st century…) with the final three gears ‘as overdrives’ how is it that a 4:10 any kind of obstacle!!

3 tons - with a DRW 4:10, 6 speed, two final gears are both overdrives, purrs at 70 mph


There's nothing magical about overdrive. It's just another gear ratio.

With moderate towing or city driving, not much difference. It will pick the gears that match the RPM the truck decides the engine should run at. Very rarely will it get into top gear and it won't really need 1st gear hardly at all.

It's at the far ends of the operational regime where it makes a difference:
- When towing really heavy in mountainous conditions, you might exceed the tow ratings with the 3.42. Then the 4.10 might get you the maximum towing capability for the truck..
- When not towing and cruising at high speed on the freeway, the 4.10 may get the RPM higher than ideal even in top gear. The 3.42 will allow the engine to stay in the optimal RPM range.

Given the tremendous towing capability of modern trucks, the 2nd situation is likely to be beneficial far more often.


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mkirsch

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Posted: 06/06/22 07:11am Link  |  Quote  |  Print  |  Notify Moderator

3 tons wrote:

Huh?? Time now to recognize the ‘new reality’ - Nowadays (21st century…) with the final three gears ‘as overdrives’ how is it that a 4:10 any kind of obstacle!!

3 tons - with a DRW 4:10, 6 speed, two final gears are both overdrives, purrs at 70 mph


Three words: Fuel economy standards.

You're still >2000RPMs at 70MPH in OD with your 4.10s. I know I'm at 2500RPM with mine, but it's a gasser. With 800HP and 1000TQ or whatever these latest diesels are pushing out, you should be able to run 70 empty loping along at 1200RPM.

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