mrsmackpaul

Yes thats the reason, it was fairly common back in the 80's and 90's in NZ in a effort to reduce operating costs when empty Paul

I very nich doubt any 1988 bogie drive truck would have been built without a power divider I dunno when Mack would have added power dividers as standard but at a guess it would have been 1930's or 40's I cant even think of any Mack bogie in a hwy size truck that I have seen that didnt have a power divider Even other brands pretty much all had power dividers by the 1950's in Australia Does your truck have a Mack bogie or some other brand Maybe take a photo of the trucks back end, diff centers etc and we can soon recognize what brand and of it does or doesnt have a power divider Paul

It divides the power between the front drive axle and the rear drive axle It allows them to spin at slightly different speeds that will happen as tyres ware and just thru normal driving When the power divider is locked both front and rear axles will spin at the same speed and hard surfaces this cause the axles to fight each other putting a lot of strain on the drive line and can also cause the axles to jump and chirp etc as they unload the tension Paul

Measure the new tyre diameters and as Seed has said make sure the power divider isnt engaged Paul

I find all governments find it way to easy to spend other peoples money when not really needed They must be gunna be real flash jiggers Paul

Yep as Seed says Paul

You is pretty switched on as I and everyone else missed that lol I always reckon it would be great to spend a year were it snows for 6 months, the spring time and summer must be amazing as mother nature has such a short window to work her magic Paul

I reckon these older mechanical trucks are nicer to drive and don'tcost anymore to run, I sometimes (most of the time) feel they cost less than new trucks to run Looks great and enjoy the ride Paul

These are all good questions I guess with anything new a leap of faith has to be taken by all, the purchaser and the manufacturer I doubt they will ever sell big numbers but will sell them if they make them Paul

Welcome to the forum Captain Paul

Yep this is the said beast Anybody ever been to the museum and had a good look at this jigger In one thing I read on google it said it had a V8 Mack motor I imagine it has a Mack front axle and a Mack ass end I wonder if it is airbag or not ? Certainly looks modern for the late 50's and even I would have thought well into the 70's Seats must of had plenty of room to only fit 39 people But it does mention a loo and kitchen so I guess a few seats vanished for them Thanks for the replies all I first read about this in the book "American Truck Spoters Guide" or some such thing and I seem to recall it had a cut away sideview picture Then again that last bit may have been another make of bus I would have a look myself or but I will be many hours away from my book for many months Paul

I remember seeing in a book many years ago about this bus built by Mack as demo and used by Greyhound I have tried searching on here BMT and found only one mention of it Wonder if any one has any information or perhaps even point me in the right direction on here Paul https://goo.gl/images/n57X9A

No need unless you stopped and it cooled down and then it will suck water in Other wise all should be good on a short swim like this Gotta keep a nice gentle constant speed and should be ok Paul

Thanks Swish man I might need to look into this further before handing over some hard earnt then I have always been very unimpressed with Dynatard Heard back from Pacbrake and it's a no go on a Jake brake for a 2 valve Mack Paul

Yeah it has Dynatard and it works (makes a noise) and slows the motor when changing gears but is next to useless with a big load on Even in grandma gear she runs away on a hill E6 motor 12 speed over drive Paul

I hope one and all had safe and happy new year My boy flew down from QLD to spend Chrissy with Princess and I, it was good to see him as I hadn't seen him for 12 months Paul

I guess before I go changing things out I wanna know it is gunna work better than Dynatard I'll chase up Newto and see what he knows Paul

http://www.tecbrake.com/Mack.html I'll shoot them off a email as well Paul

Also Googled them in Australia Will drop them a line on Monday http://www.tieco.com.au/Tieco/Pacbrake.html Paul

Thanks Seed Have sent them off a email Will report back what I learn Paul

How does it compare tp Dynatard? Can you feel it working, as in holding you back ? thanks in advance Paul

Dunno, but a 320 coolpower isnt to bad at all If the passenger window is up it's nice and quiet out side If I have something big and tall behind the cab it sounds fantastic climbing a hill Hmmm , wonder what it would sound like in a tunnel ??? Paul

Dont know anything about these modern electronic jiggers sorry Good luck with what ever you decide Paul

Paul