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After the EcoHubs and the original 3.90 gears are installed. when I take it to caterpillar service to have them reprogram the eco speedometer doe anyone know the ratio? I think it was a ratio that was needed, its been 6 or 7 years ago that I had them change it for the 3.07 gears. Or is that...

Hope this helps the next person.

Problem solved. I removed the top which requires a lot more labor because you have to pull the entire door off. All to discover it wasn’t the top hinge causing the problem. Proceeded to remove the bottom hinge. Put it in the work bench vise and now you’re able to get full range of motion, like...

Interesting, love math. So based on that I’ll probably leave it alone.

This didn't get much traction, but i'm back home and removed the door limiter on the bottom of the door and the door was still very stiff. So I've have been spraying penetrating oil on the hinges for a few days and working the door open and closed 50 times after each application. Tonight the...

Thanks, That would be a good idea. I did that eight years ago using some of the original cables, without doing any research. My truck was missing all the batteries and the cover, so I improvised and made a new shelf for the batteries and made an aluminum cover. No more fiberglass slivers. When I...

Thanks and they are meant for heavy duty truck use.

I switched to 4each group 31C batteries. I had to make new mounts and connections, but way cheaper. I used 1”x.25” silver plated copper buss bars from McMaster Carr.

Still waiting for opinions on my last comment! LOL!!! 😂

Ok those numbers are perfectly acceptable. So knowing I weigh in at 27,600lbs. Stick with 3.07 or go back to 3.90 considering power and fuel economy?

So Rick in your video it looks like it released the exhaust brake around 22 mph. Your rig still has 3.90 correct? So with my 3.07 I could expect it to release more around 25-30? I wish my trans display was like yours showing what gear its in.

As I contemplating eco-hubs. My truck is a 2003, 3126 tuned to 330hp with 3.07 gears, weighing 27,600lbs. One of my favorite aspects is the exhaust brake especially going down step 10% grades, narrow 2 lane roads with switch backs every few hundred feet, with no shoulders for miles. Is that I...

I have a machine shop so I just made a driver. thanks for the information.

That is a great explanation, I appreciate! Thanks

Yes back to seals, Oshkosh sold direct? Do you have a link? And why only a few seals not all?

Thanks, I tried, planned, hoped to achieve that. After completing it 18 months ago I finally stepped on the scales. 😂 Kinda like getting on the bathroom scales, don’t want to know the truth. But I was super excited about the axle balance.

I’ll have to read his comments. sounds like I might be ordering some eco hubs. I would save about $1,700 every 10,000 miles in diesel.

Are you saying that is still true with eco hubs and 3.07 gears? And you definitely don’t mistake the high pinion’s set up.

So what year did the high pinion start coming out?