Vladislav

We are no less anxious on that than you

The housings for airride and Camelback may differ by the attachments. Pre-90 Neway usually had double "cleves" at the bottom side which were a kind of cast steel bracket with two ears for bushing welded onto the axle housing. Camelback axles have pads at the bottom to accomodate the rubber pads and clamping caps. The pads are cast together with the housing if its cast style or a weld on part for fabricated housings. Once I met interesting setup of Neway equalizer beams connected to "ears" which were steel brackets attached to cast iron housings by bolts. Actually the housings were the same style Mack use for Camelback. But these "ear" adapters allowed to use them with Neway suspension. And all looked like factory setup, not home made. Also different truck models had different width of the rear end of the frames. The most of earlier rigs such as R, F, DM and also B-models I belive had 33-1/2 measured at the outside of the rails (with small wariations due to the rail material thickness or presence of outer rails etc). But newer trucks like RW, MH and than further CH/CX had different distance between the rails. That means different distance between rear suspension parts and as a follow different positions of attachment elemens on axle housings. So all in all you should pay attention to style and location of mountings on particular housings you might be wanting to swap in. Speaking the initial subject of the thread I'm with you on preference to be sure every important part in a truck or other vehicle has its properties according to industry standards and quality. We're supposed to belive factory things such as a truck or a car made in a plant were designed and build the way they should be to drive safe and reliable. And when we meet a fix which doesn't seem done correct big preference is to get rid of it by redo or swap. If a weak link takes place in a chain the fact it haven't broken yet doesn't mean it will never do.

Me too

No Keith, looks like they're not. At least 3 R688 of the SGT bunch had the spring brackets with tow pins incorporated (and used no spicers) and also there was one more R which I purchased a hood off and it had the same style brackets and VIN starting with 2M2N pointing to Canadian assembly. All those were made in 1988. On the other hand the truck I mentioned in the post above was Matt Pfahl's (from Connecticut) restored R-model I crawled under for a few detailed pics accordingly to the condenser mounting (to fit it properly to my R). And that truck had spicers (as I mentioned before) and American VIN-code 1M... Built in 1985. So my guess the spicers were an option. I don't see any practical use in setting the tow pins off to the front (and putting them in one more separate part hold by bolts instead of a generic chassis part as the spring hanger) so probably it was a matter of style. Same as two bumper options for 2nd generation Superliner. Modelbuilders must be happy with what we describe and show out with pics definitely

All i can do with that is put sad smile with the like button...

Yup, you got right about exactly how the bumper fits to the truck if no spicers used. No top tread plate is used with the bumper in this case too.

Bolts you fit the bumper are common style bolts not carriage bolts since you have good access to the nuts at the other end. I bought new SS bolts when installed chrome plated bumper and maximum OD the holes allowed me to fit there was 9/16. Sure 1/2 would also work but I preferred as thick hardware as I could put.

Those spicers were an option. Otherwise bumper seats right against the spring brackets. And it doesn't interfere with a stock condencer. But when I started looking for reference pic for you I found out interesting fact I have never payed attention to before. As you can see on the pic below the spring bracket already has 3 bosses which actually play a role of spicers for the bumper. I was going to use a photo of different R-model which both had a condencer and a bumper in place (and I had a good pics of). But when I looked at it I discovered it used those spicers exactly as Keith showed on his trucks. And when the spicers were used the spring brackets didn't have the bosses. Both at Keith trucks and on the one I had a pic of. At the same time 2 of my R's and one more front end of a truck I bought for parts in the past had bosses and no spicers.

To my stupid understanding if De Jure you're right democracy should steer the things the right way. Seems like our world is far from perfection at any place.

Which country are you talking about??

Thanks, Bob. You answered that exact matter I was thinking about. For some reason I supposed U-models went off production earlier, in the late 70's or so and were never fitted with 4V engines. So that grille looked too modern on that truck on my mind. With what you said all the ducks are in order. Hmm... interesting. Turns out U-models should have two different hood lengthes. A short version for pre-CMCAC and 2 inch longer for the later ones. Same as for R's.

To me it looks like you can install a primer pump just in place of the 2nd plug. Or better to say that spot supposed to suit the primer but Mack "simplified" the things for a operator at a certain time to not bother his mind with such a unnecessory item as a primer. And plugged the 2nd hole.

The front standing U-model in the #5 picture has a decorative grill of a kind R's had installed on a CMCAC and it looks untypical to a U. Were there any U688 or U690 with chassis mounted aftercoolers produced or that grill appered there just by ocassion? Yes, Vinny is always on my mind when a U-model shows up by any chance.

As said above PAI offers supply pumps for that engine. Units put onto Ambac and Bosch injection pumps differ. But even that seems being possle to climb up with some re-machining or use of adapting parts.

Yup. All the setup is in the front housing of the FR axle diff. Take away the prop shaft, drive yoke, front cover and you'll able to pull a cage out and see them wedges. Sure better to look at a cut or blow out view in a book and read a bit. The CRD92/93 maintenance manual may be found on the net. Vlad

No, I don't know. Probably not. Guess the numbers reflect the pump capacity but also not sure.

B95 is a fire truck model.

I have a manual which is entitled as T2070A. Common reverse style but long rear compound. In fact it's half empty compartment if you look through the top cover opening. There's space for the reverse setup but it doesn't take place. Probably the reason is possibility to install PTO. Short compound housing doesn't have the mounting as I mentioned above.

Looks like a well cared truck from the distance. How could you track the suspension??

You are probably right. I have only a few Mack tranny manuals but one about T2070 represents long compound only. Also there's a brochure (below) posted on here in the past which also describes T2070 in the long housing only (note the length in the list). And two actual 7-speed trannies I could adopt locally both have long 2nd housing. On the other hand I see no reason a 7-speed can not be done in the short version.

Upps... I'm interested since kept my eye for something like this for a while. But I'm not sure I'm able to import at the moment due to the known situation. I will ask forwarding folks tomorrow on current possibilities. If anyone else leans toward making a deal on this starter I'd step aside.

Hope it's not difficult to fugure which one is long and short. The particular pics represent short version T2090 (I have almost similar T2060 in a truck) and the 2nd unit is the spoken T2070 long compound I installed on my R in place of the "short" nine speed. Had to cut the prop shaft and tinker with shifter air lines a bit.

Pretty easy way. Long compound T200's had cylindrical shift cylinder housing attached to the rear end of the transmission housing above the prop shaft flange. Short compartment versions have that cylunder hidden below the top cover of the compound housing so you don't see anything sticking out above the prop shaft. Also there's a PTO flange (usually plugged with steel cover) on the long compound housing and short version didn't have any side covers. Actually long compound housing is nearly 15 cm longer than the short. So easy to figure out if you have another style ever seen. BTW I'm not sure T2070 was offered in the short compound version. T2080 was.

Yup, that's the one. Also was close to be called a glider kit.

They had interesting offer on a heavy specified Superliner with decent double frame as it was seen in pics. The point was the truck didn't have an engine but everything else was there including cab, hood, radiators, Mack rears and tranny. Seemed as a perfect base for a resto project but there was no price tag either. I spinned some thoughts in my mind but figured to not stir the pot making a call. Now it seems gone.