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Each hub has a vent line and those two tie together and back to the main/center axle housing. It is the inboard fitting on my axle. The T fitting is on the inside of the passenger frame rail on mine, you can use that fitting to determine which lines run to the vent ports on the hub. The other...

Thermostats? There is only one for the engine… the 6X tractors with the auxiliary transmission coolers have a thermostatic control valve in the oil plumbing that decides if it wants to send fluid to the secondary cooler found on those tractor models, but the 4X4s only have an engine...

The pushbutton light switches are known to be a little problematic. The switch assembly should also have a good ground connection…

It wasn't just a governor adjustment, it was a governor and turbo replacement. There is an adjustment that you can do that will roll on the fuel a little earlier off idle, but that is not going to effect Peak torque output or HP. The governor is matched to the turbo, you replace them both and...

What Colt said, These trucks were not built for highway efficiency, they were built to meet a military specification(milspec). In this case I think it had to be able to overcome a 18” curb at max weight? Weird things happen in the land of milspec, like the grossly oversized battery to meet a...

I doubt the winch is blocking much, as there is plenty of room for air to get around in behind under the intercooler. These trucks have horrible natural rolling/ram airflow and the fan is a necessity when you are making heat. With the truck turned off, the fan should be locked and you should...

Use the messenger function of this forum and direct message me your Email and I can send you one…

Cat specced a pair of group 31 batteries for these engines, you really don't need any more unless you have electric loads to feed when the engine is not running. A single pair of the original 6t batts will be more than fine… the LBCD senses generator overload and disconnects the batteries. I...

Exactly, lots of technical hurdles...

No thrust forces(outward) because the inner gear is just resting on the spindle splines with its inner face against the shims and its pins holding the wheel nut in place. If the spider gears were in place, it would have been thrust inward against the shims and wheel nut, but there is nothing on...

No, not really The upper frame rail has 4 box/pockets welded on it where the box subframe attaches with bolts and springs. The 1078 bed attaches to the frame a little differently. The truck chassis are the same, with one additional wiring harness used to connect the box to the power panel…

I think the spider hub probably would have retained the inner gear, even with the spiders and their shims installed there does not appear to be much clearance between the spider hub and the inner gear As seen in the pic Geo posted… He could have stacked shim washers there also, there should be...

The inner gear just slides onto the splined hollow spindle. I suspect he simply relied on the spider carriers center hub to keep the inner gear flying in formation to retain the wheel bearing nut…

Ok, it looks like he welded the outer gear to the cap, which would tie the splined axle to the hub… but this doesn’t show how he retained the spindle nut….

Exactly, lincoln locking it would require more problem solving/engineering. I looked into it as an option I could do myself way back when i was analizing deleting the hubs, but never solved all the issues and had to shelve the idea to finish building my house. Mike produced the eco hubs...

Yep read the manual. Was that a typo,and you have a 98 1079A0? With the 2:1 hubs, the first 2 gears(2nd&3rd) are still pretty tall. Lightly loaded it usually bangs thru them pretty quickly until 4th and 5th start to decently load the engine. It could be the transmission TPS is out of sync...

@patracy i cannot attach pics in messenger, so will post them here. Not gonna make me feel guilty. People don't come to forums for the advertisements, they come to find information and get questions answered, and I do a fair bit of that… For free I might add… probably have even helped...

Having adds you can scroll past on the margins is one thing, but the popup adds and fake add lure buttons(big button labeled “next” with an arrow) Imbedded in discussions are starting to get distracting and tiresome…

The problem I see with the locker method is the inner fixed gear is also the retainer for the wheel nut. Since it is fixed to the splined end of the hollow spindle, it must be removed, and something else used to retain the wheel nut, or it, and/or the spider gears must be very heavily modified...

If your current speedometer switch settings are, 1101100101 The new dip setting from the charts for 1/2 the input frequency/calibration number for eco hubs should be 1011001011 or 1,3,4,7,9 & 10 switched on…