Geoff Weeks

Try getting them to find Marmon ("who made that?" Marmon made Marmon, "yes but who made it?") or Dart (Oh, you mean Dodge! no I mean DART!

IIRC it is the Trico's that have air to the motor when in the off position (for the self park feature) and so have air through the control at all times. Sprague (sp?) don't "self park" and shut off the air when turned off and you have to manually crank the knob counter-clockwise past off to park. Both controls are still available last time I looked. Both motors use "back pressure" on the exhaust side to keep them from being "floppy". Too often someone tries to get more life out of a motor by opening up the exhaust restriction, and they you end up with fast-floppy wiper movement. As long as the shaft splines are good, and the case isn't damaged, there is little other than O rings and seals to go wrong with them. They can take being frozen to the windshield with the motor "on" without damage, that could kill and electric.

Hauling things for payment of any kind, (even prize money) puts you in the commercial realm. Fines and impounding can be the result. Hauling your own stuff for no payment is a gray area, just because it is harder to determine on the side of the road if it is commercial or not. Remember, it is not what the letter of the law says, it is what the officer who has you stopped on the side of the road thinks. Yes, you may win in court, after your truck has been impounded and you have fought the fine in court. The 1st two things come before the court date! It is also why very few insurers will write policy's for larger trucks towing trailers that aren't commercial policy's. They just don't want to be paying out for commercial use on a private policy. Then there is the fact that taking it out of state without an IRP plate is likely going to cause problems. Same for fuel tax. Yeah, I know big RV's don't pay those things, but to the officer on the side of the road, a "Truck is a Truck".

I used to rebuild mine HP100's cost $3.75 in O rings and good to go. Trico's area bit harder as they have shaped seals. Haven't done one of them, or needed to (yet).

Broaching is typically cutting a slot, like for a keyway. Reaming is sizing after installation of a bushing. The bushing on mainshaft gears shouldn't need a keyway, just clearance for lube. There isn't load on the bushing when the gear isn't in use, it just has to let the gear slip on the shaft. Multi countershaft transmission the gears just "float" on the main shaft without any bushing. I haven't seeing anything of goggle that applies in this case. Here is what broaching can do

I suspect he means bore to finished size after install.

Almost always cheaper to repair than replace, cheaper to replace like for like than to change to something new. Often it is the little stuff that keeps cropping up that drive the price up. I was surprised I didn't have much trouble when I was going through the British bus trans or rear axles getting bearings or seals. They used some odd bearings also.

SQHD's don't have the best reputation, I know one guy who calls the "sure-quitter's". They have an idler gear between the power divider and the front pinion. Later SQHP's and SQ100's don't. They beefed up the powerdivider section and eliminated the idler gear. They are way obsolete, Heck, the SQHP and SQ100's are obsolete. The 3.70 gear ratio is also not made anymore, they went from a 40-10 (40 tooth ring gear, 10 tooth pinion) to 41-11 for 3.73 ratio so finding gearsets (should they be needed) may be a problem. Before making one big change that would require a lot, it may be time to re-assess and decide if you want to stay with that model and ratio or if you want a whole new cut-off, or just repair what you have. Later SQ100 housings will not be right either I don't think, so you'll be needed SQHD housings unless you weld brackets to what you have now. The SQHD's both pinions turn the same direction and are on the same side of the ring gear (front and back) SQHP, and SQ100's the front pinion turns the opposite driveshaft rotation on the front and are on the opposite side of the ring gear. SQHP rear-rear is amboid (essentially turned upside down) with the pinion above the centerline, SQ100, they went back to the lower hypoid gearset with the rear-rear pinion below the center-line. All this means is although all the models are related, the housings can be different for the different models. edit: Hadn't had my coffee when I posted the teeth count! 3.70 is 37-10

That tag must be off the rear-rear not the front?

Hyd detach, if ground bearing or not, spring is fine. Nothing wrong with the Rayco air, it looks like a Hendrichson clone. just hard to find I suspect. One thing to be careful about, if the mounts need to be moved, so does the crossmember. If only moved a small bit, it means holes welded and new holes in a limited area and that can weaken the frame. Personally, I don't think the change is worth the trouble. 4 spring is simple and has few wearing parts. Not the best suspension, I'll agree but dead simple, doesn't need bushed torque rods, which are always a maintance problem on all air suspensions. People over estimate air suspension comfort. All trucks have air bags between them and the road, they are called tires and you can see how well they do! If the issue is my comfort, air suspended cab will do much more for ride comfort than air truck suspension. I had a short wheelbase tractor on walking beam, mechanical T bar drivers seat, but suspended cab (coil spring cab suspension) and it was very livable. If the wheel base was longer, it would make far bigger difference than if the rear axles were on air.

Not sure he is, just said detach, but if mechanical, air ride has an advantage.

Mechanical RGN with any spring ride is more trouble than air ride. Walking beam Hendrickson is a great suspension, but starting from where he is starting from, either Rayco/graining air ride or Hendrickson or one of the corp clones would be the easiest. I don't think he is planning to put a cut-off on.

Does it have an oil filter can sticking off the front? That "R" may be a "P"

If mechanical RGN, then yeah, air ride is helpful with the gooseneck, being able to drop the suspension and lift back up helps. It should be fairly easy to find Hendrickson housings with the torque arm weldment on top. Do you have SQHP, or SQHD's? By the time SQ100's came out I think the ratio switched to 3.73. The reason I ask, is the rear, rear is Amboid (pinion enters above the axle centerline) on the SQHP and the housing is different then the later SQ100 (which is hypoid) essentially the rear-rear housing is "upside down". I may have the bracket weldments off a IHC Airride, but will have to look, then getting them from Omaha to NH would be the biggest problem. That way you could use your housings and weld on the bracket. They may have got tossed in my last clean up.

The Hendrickson, and the various OEM clones are about the best out there for most applications. Neway is expensive and difficult to maintain and need brackets welded onto the axle housings. Neway might be worth it for heavy haul. Easier to align than Neway. Rayco is fine for 4 spring, and it is almost always cheaper to fix what you have then start over. 4 spring isn't so good off highway, but properly loaded, you'd be hard pressed to tell it from air ride on highway. I ran both, 4 spring and IHC (Hendrickson) air ride. What ever you do, run away from a Neway ARDAB suspension. No parts, expensive and always need bushings.

Look at what Atro has to offer on any bushing for a truck. they have a large selection. https://www.doverbrakeinc.com/downloads/catelogs/ATRO BUSHING CATALOG.pdf

I think he is installing where it never had them, Not excusing the price quote, but not just replacing.

Heck I remember going as far as Lincoln before 95 was completed then came 95 that was 2 lanes (was 2 lane from Orono) Was up that way to bury my Dad's ashes a few years ago and 4 lane divided all the way, almost like being in the lower 48! Dysarts, was on Hampton rd IIRC

PAI must have got better. I used Interstate McBee, for engine kits, but don't know if they do Mack. I would buy the bayonet mount air gauges from PAI (I guess both IHC and Mack used these) and gut the case (only thing that went bad on mine were the little "ears" that held in the dash) and fit the IHC gauge in the PAI case. The PAI gauge itself wouldn't work with the IHC quick connect even though it was sold as fitting IHC. You had to re-work the case a bit for the IHC gauge to fit, but it was worth it.

so long ago I don't remember the spec's. Might have been a tad heavier as well, there were a coupla loads I moved in that weight range, I don't remember all the stats on them.

Pre digital picture days, EMD generator move. ~102K on the quad, 56K on the tridem

Its got Trico air wipers, those are getting hard to find parts for.

"Old age sucks, but it beats the alternative" Dad, RIP

When does 40 ton become 90 ton? I moved an EMD 20 cyl, generator and switch gear all enclosed on 8 axles. around 168,000 lbs gross