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The CTIS will work as long as there's space in the hub for air to flow from the inner wheel bearing into the hole in the side of the hub that's piped into the hollow wheel stud. It looks like you'll have to modify or fabricate stone shields to fit around the lockout hub. You can probably do...

That's super-important - thanks for mentioning that :) I really didn't know what the stock transmission was rated for.

I was thinking about a 2:1 reduction gearbox between the Vortec and the original 5-ton transmission. We'd be seeing up to 760 lb-ft at the gearbox output. Does a reduction gearbox like that exist, or would that be a custom component? Would that much torque break anything on the driveline...

What happens there? They're used in the GM pick-ups and full-size vans. Here's a comparison between the L96 Vortec 6.0L (for greater than 10000 lb GVWR trucks, or is it GCWR?) and the Continental R6602 (From TM9-2320-211-20): Attribute GM L96 Vortec 6.0L Small Block V8 GM L18 Vortec 8.1...

I've pondered this ever since I looked at an old tractor wrecker with a bad Continental motor - has anyone done an LS swap with a 5-ton gasser? I think the Chevy 6.0L Vortec has the same or better horsepower and torque than the old Continental motors. I'd consider trying this if I found a...

At least you have a cold air intake if you ever decide to do something like an LS swap!

How big is the condenser?

This is the first time I've performed drive hub maintenance on anything bigger than a Chrysler 200, so it's been a fun learning experience! On my second hub I got unlucky struggling to get the axle shaft seated in the differential (I got it on the first hub I did but had no clue how :p ). I...

Have you decided what's going on the back of it? Another wrecker body, perhaps?

The trucks typically take DOT-5. I think there might be a bleeder on the air pack too, but I say that having never done brake work on my truck. Someone else here might think of other bleeder locations.

I'm doing hub service right now on my A3. I'm using the NAPA high temp high pressure grease with the NGLI 2 rating.

A C-clamp would do the trick!

You just gave me another idea - make a grease reservoir to fill on the small diameter end of the bearing and use some kind of plunger to force the stuff down into the race - pack a whole chunk of the bearing in one go(y)

The M35A3 inner bearings are completely sealed on the larger diameter side and therefore can't be packed from that side without destructive disassembly. They're prepacked by Timken and probably considered completely disposable when following the packing interval in the LO. They still cost...

The TM says the wheel weight is installed after the clamp ring nuts are installed, which isn't how my truck was manufactured. If it were my truck, I'd put the wheel weight on the appropriate clamp ring stud and secure it with another nut. The CTIS stone shield is tightened only to 60-80 ft-lbs...

I don't have a grease needle here - something I need to add to my toolbox. The guy I originally quoted tried a grease needle and it wouldn't fit between the cage and inner race - maybe his grease needle was too big? 🤷‍♂️ If any ESP truck owners want to print this themselves I have the STLs...

This fellow wasn't wrong when he said packing the M35A3's inner wheel bearings in this manner was time-consuming, so I printed a tool to speed up the process. My tool forces grease into the ~1.5 mm gap between the cage and inner race, forcing all the old gunk out from above the rollers and...

There should be an air valve behind the passenger-side rear mudflap. My method of operation: 1) Connect gladhand 2) Open emergency air valve 3) When done using truck air, close emergency air valve 4) Bleed air from connected hose all the way down before removing gladhand Your truck may...

If you want to use compressed air off your deuce the "Emergency" gladhand is your friend! I keep a long air hose in my truck's toolbox with a gladhand on one end and a quick-connect on the other end, to which I usually connect a remote-locking air chuck.

Here's another question: How much does a hub weigh? The OP says a brake drum weighs about 40 lbs. I'm guessing the hub is also around 40 lbs - the hub-drum combo is heavy!!!