GM's 2020 tow rating question for all
GM as we know recently announced their '20 tow ratings which is about time they upped things. Anyways, what get's me is how their SRW can now tow 18,000. Seems odd that there can be that much of a jum...
Forum Discussion
Huntindog wrote:Cummins12V98 wrote:Ummmm... That would only be true, if GM were to attempt this test with 3.73s Here is where I point out that neither Ford or RAM passed that test at higher weights with 3.73s Must be because their trannys were weak?:B:EFishOnOne wrote:Cummins12V98 wrote:
The answer is they could not pass the SAE test at any larger weight. My reason was the Allison 1000.
If you watched the video I posted last week the GM engineer was asked what did they do to improve the towing capacity by ~10k lbs and the engineer stated they improved the cooling system, rear axle, and drive train (place Allison transmission here).
2020 GMC
Repeated hill starts would be the reason. Fact is the rear end is now a 3.42 and before it is as 3.73. Maybe stronger but not as easy to move the load unless first gear in the NEW trans is lower.
Go back and reread my post.
And realize that if GM had been able to just put in a 4.10/4.30 gearset as Ford and RAM did, that they would then be able to move heavier loads with out increasing the stress on the tranny one bit.
Here is RAM's SAE numbers from 2017 using 3.73's. They were able to tow just over 25k even with 4wd and crew cab. DRW reg cab 2wd would have been higher.
All we heard of that era is "nobody needs to tow over 23k". If they could have been competitive with 4.10's I think they sure would have.
It's all water under the bridge and they now have competitive numbers as I predicted they would once they changed trans. Let's not forget they went the opposite direction with the axle ratio and still achieved big numbers. Good for them and good for having more competition!!!
