Ram Cummins/Aisin Failures

Cummins12V98 wrote:
It's very easy math to figure your weight transfer to the front axle. Measure centerline rear axle to centerline front axle. Now how much forward is centerline of kingpin or gooseneck ball from centerline rear axle.

My axle to axle centerline is 170" and forward dimension of kingpin is 4" that is .0235% of 170". My pin weight is 6,000#. .0235% of 6,000# is 141#.

Whoops, your math is off a bit. :) 4" is actually 2.35%. That seems low to me too, mine is about the same amount in front of the rear axle and it puts over 200 lbs. on the front axle, and that's with a hitch weight of about 3400 lbs. Don't know about the math, but that's according to the Cat Scale. :)

Huntindog wrote:
from tranny failures to ball joints??????????/:h

Hey he ran out of Trans and engine issues.:B

ksss wrote:
I have never checked to see how much weight is transferred to the front axle on a gooseneck or RV. That said I run heavy, not so much with the TH but with a gooseneck. I am licensed to 40K and typically right on that in combined weight ('20 3500 DRW). I am struggling to believe that such a small amount of weight is transferred to the front axle. It just doesn't seem possible. The differences between the trailer weight ratings between tag and gooseneck on all the HD OEM's just makes that a leap for me to believe. The way the truck sits when loaded heavy between the two types of trailers says there is more than a couple hundred pounds on the front end with a gooseneck. I don't have data that supports what I am saying, and I probably should have, but when I run over scales which is typically at gravel pits, I just look at gross combined. DOT has not hassled me so I run with that.

It's very easy math to figure your weight transfer to the front axle. Measure centerline rear axle to centerline front axle. Now how much forward is centerline of kingpin or gooseneck ball from centerline rear axle.

My axle to axle centerline is 170" and forward dimension of kingpin is 4" that is .0235% of 170". My pin weight is 6,000#. .0235% of 6,000# is 141#.

Don’t struggle too much to understand. This discussion has gotten pretty inane.

I have never checked to see how much weight is transferred to the front axle on a gooseneck or RV. That said I run heavy, not so much with the TH but with a gooseneck. I am licensed to 40K and typically right on that in combined weight ('20 3500 DRW). I am struggling to believe that such a small amount of weight is transferred to the front axle. It just doesn't seem possible. The differences between the trailer weight ratings between tag and gooseneck on all the HD OEM's just makes that a leap for me to believe. The way the truck sits when loaded heavy between the two types of trailers says there is more than a couple hundred pounds on the front end with a gooseneck. I don't have data that supports what I am saying, and I probably should have, but when I run over scales which is typically at gravel pits, I just look at gross combined. DOT has not hassled me so I run with that.

FishOnOne wrote:

Cummins12V98 wrote:

FishOnOne wrote:

Cummins12V98 wrote:

Me Again wrote:

Cummins12V98 wrote:
A little more on the "Ball Joints" being bad. My truck is a pavement princess with no off roading no different than the guy in the video. Can't get much easier duty than my truck gets or his concerning ball joint wear.

Wait a minute here, I know for a fact that you drive on California highways all winter and commute North in the spring and South in the fall on I-5 in Northern California, which are similar to "off road" roads in other states.

No lateral stress like off road.

There's a lot of stress on the front end parts when towing a gooseneck/fifth wheel.

Are you kidding????? My 6k pin adds around 175# to the steer axle, THAT will do nothing to cause stress on the front components.

My hitch is full forward to be clear. If this guy adds 100# to his front axle with the RV's he is towing I would be shocked.

If it adds so much stress then my front end should be toast at 102k.

No I'm not kidding.

Maybe you can explain?????

Cummins12V98 wrote:

FishOnOne wrote:

Cummins12V98 wrote:

Me Again wrote:

Cummins12V98 wrote:
A little more on the "Ball Joints" being bad. My truck is a pavement princess with no off roading no different than the guy in the video. Can't get much easier duty than my truck gets or his concerning ball joint wear.

Wait a minute here, I know for a fact that you drive on California highways all winter and commute North in the spring and South in the fall on I-5 in Northern California, which are similar to "off road" roads in other states.

No lateral stress like off road.

There's a lot of stress on the front end parts when towing a gooseneck/fifth wheel.

Are you kidding????? My 6k pin adds around 175# to the steer axle, THAT will do nothing to cause stress on the front components.

My hitch is full forward to be clear. If this guy adds 100# to his front axle with the RV's he is towing I would be shocked.

If it adds so much stress then my front end should be toast at 102k.

No I'm not kidding.

Cummins12V98 wrote:
I just replaced my front brakes and rotors with EBC. While tire was attached and off the ground I did the push pull top bottom and sides with ZERO slop at 102k.

Why did I replace brakes at 102k??? Because I had a drivers side sticking caliper and inside pad ground into the rotor. So I replaced with OE caliper.

I also removed my ABS sensor and pumped AMZ/OIL grease into the hub assembly. Will be interesting if the hub assembly lasts a long time or not.

My '12 still has the original driver side hub assembly at 260k miles and had to replace the passenger hub assembly at ~150k miles. They don't have serviceable bearings so pumping grease into the housing is questionable if there will be any benefits.

So far at 260k miles I've replaced the passenger hub assembly and shocks. All other parts on the front suspension is original.

I just replaced my front brakes and rotors with EBC. While tire was attached and off the ground I did the push pull top bottom and sides with ZERO slop at 102k.

Why did I replace brakes at 102k??? Because I had a drivers side sticking caliper and inside pad ground into the rotor. So I replaced with OE caliper.

I also removed my ABS sensor and pumped AMZ/OIL grease into the hub assembly. Will be interesting if the hub assembly lasts a long time or not.