mechohaulic

heck if he has both ; run one :it's not right there is the option of using the second. I wouldn't get rid of the spare.

I wasn't going there and be blamed for "going off topic "AGAIN 😁LOL

my wife makes fun of me when driving the car and my right hand starts shifting while listening to a big rig near by going through the gears.

now I know i'm screwed up. reading Your post I'm flipping the yellow button with my finger. Oh to get back to the wrenches again. THANK S JoJo

going through southbury CT today i spotted a DMM 600 STEEL NOSE dump in a lot off main street. I was driving , couldn't stop for pictures. anyone (CT area ) know of this unit. will try to get back for pictures /info. different looking with the steel nose.

old man needs a little help here ;; a 12speed I know , what the heck is a 310MLR. this goes back to what i stated some time back.. the numbering system is SO different.

I'm guilty a few times at least. 😂

It's ALL good knowledge

a Mack mutispeed ::duplex/ tri/ quad are in reality one transmission : a spicer or other are two or more transmissions having a driveshaft in between the two.

now who is going to explain to everyone how did a "pulling 673 injectors topic become a rear axle cap topic , I DIDN;T DO IT THIS TIME LOL

also you are looking at a tandem rear floating axle cap VS the single axle solid axle configuration

no air / nomaxi/NO STOP ::: just sayin.

so many yrs later and still learning. never paid attention to side by side vs up/down on air cleaner piping, do remember the cable control now that you posted a picture. so many changes with "progress"; still remember the dry road/slippery road valve on dash;; it cut the full air pressure to steer axle brakes .

one of the reasons air start vehicles had larger volume air tanks. as with all mechanical devices ; each one has it's down fall. back then engines could handle the forbidden ether can. many of winter road calls for no start / no air.

Don't look now !!! we are going off topic AGAIN. I put short version of me and a H67 on frozen clutch topic. yrs back two old timers came to waterbury mack from Maine to look at a H67 single axle for sale. dead winter cold ; tow truck hooked to H model. I'm in the H. boss and two buyer watch as tow truck pulls me to start. tow truck stops ;I didn't . the H had a twin stick duplex. everything so cold i thought both sticks in gear:: aux wasn't .SMASH into plate on wrecker with the bubble nose. my boss (big guy) races over to me : "get out of that truck you fu--in assole. two buys never said a word; got in their vehicle and left. so summary:: my H model story didn't have a happy ending LOL

thanks for video: i will log off here and check it. wouldn't go through for me on here.

have to say the H model may have been a quirky looking with the little bubble nose ; at same time a different all around truck. higher cab had visibility and shorter cab

new england area back in the day had a number of fleets using air starters. many benefits : if as mentioned they were maintained.

sounds like a positive accusation, depending on trans you were planning on connecting to it

or even the "spaghetti westerns" what's better then the clint Eastwood ; good, bad, ugly .trio scene near end; find yourself rootin for the guy. what better TV time after fill up on turkey. LOL

make sure there is plenty of run room in front of you. and parking brake WILL stop truck in emergency. agree with above suggestion; air build up . I mashed front of old H67 yrs ago when being towed to start= two stick ten speed : dead cold winter . main was in gear aux wasn't ( thought it was). tow vehicle stopped , I let up clutch - I didn't stop.

i think i lucked out when working for Mack, they were still an AMERICAN truck. MS and so on came later in time. B's/ R's/ MB/F's and of course the DM's ; the real Spirit of American !! what's this metric crap !!LOL

going on idea that's a picture from ground level; the outer linkage would be top of photo. since that's a push clutch, is it possible the fork hold down/ tightening bolt is in backwards and the nut being thicker then bolt head is hitting cover housing?? difficult to see ,some what looks like housing has marks behind nut. don't remember clearance . if someone could be in cab slowly working clutch while you watch (wearing safety glasses) to see throw out operation. AND TRUCK SHUT OFF WITH KEY REMOVED.

I was just studying the pictures you posted. as i've stated numerous times here;; I'm always willing to learn (some )new things.

check very early post ; clutch isn't stuck just takes 20seconds to go in gear the way i read it. that's why i brought up the clutch brake idea.