Full Floater

And do the fuel tanks interchange from drivers side to passenger side? The tank truck needs a passenger side fuel tank and the parts truck only has a drivers side tank

Found a running parts truck with a 300+ and budd rims and hubs on the drive axles. I have not looked at it in person yet but im looking tomorrow. Im assuming they are Mack diffs. That would be a good score to find the hubs, drums and rims in one shot. They are also 22.5s. Is there anything i should look for in regards to compatibility of axles to accept those hubs? I'd like to swap the hubs, rims and drums or whatever i need to, onto the tank truck. Also, i picked up everything i need to paint the tank up, so that's exciting!!

Ok great. Whatever is in there now smells kind of like ps fluid. Should i drain it or just top it up with engine oil?

What is the reservoir for behind the compressor? Is the compressor lubed by this res? And what kind of fluid do I use in it? ...its leaking a bit

And if I went away from the Dayton style rims and got some budd rims and hubs, would the hubs needs to be Mack specific?

Thanks guys. The tires say "10-20" on them. So just to clarify, i can toss a timeless tire and rims on my existing hubs? And just keep the spoke wheels for the sake of it (which is fine by me) or are you saying keep them in the truck? Sorry, its all new to me....

Every tire shop i talk to, recommended getting away from the spoke tube wheels. But they also could be just trying to sell me more parts and labour also. So i thought i would do some more research. If i got rid of the spokes, i guess i would need different hubs to wouldn't I? Yeah the rims measure to be 23-1/2". Would that make them a 24?

Yeah im going to work it. Forest fire fighting in summer months. Its actually pretty clean for a Canadian truck, next to nothing for rust. So im going to paint er up a little better, newer tires and rims. I have 23'' tube type rims on it now. What are my options for a newer steel rim? Does Mack use any special bolt pattern or anything I should know about? Thanks

Here ya go!!! She aint that pretty but that's nothing a fresh coat of paint and some newer tires and wheels wont fix

Thanks so much for the positive feedback, im very happy with it thus far, only 225km on it. I will practice the shifting more and more in hopes to get it mastered. Ok, that makes sense to me mrsmackpaul. But just to clarify, if I want to shift from H to direct; I would maintain my throttle input, preselect the "D" and then increase the throttle input by the 400 revs to match that gear and it should go in? Is it normal and typical for them to growl and grind just a bit when splitting? I have yet to get a perfect no growl shift, but im getting close. And yes, mine is very whiney in 5th over, much louder then a fuller trans no doubt. What fluid to these trannies like? And how about the 300 hp Mack engine? Are they a reliable engine? Any maintenance tips or things I should look out for? It seems to really like being around 15-1600 rpm. Do you guys run a lube additive in your fuel? Mine runs at around 160 degrees and climbs to about 180 on hills and about 200 if loaded with some weight. I have not maxed it out yet for weight.. Is that about the right temps? Mine is a water truck, 4000 gallon with a PTO pump (which has a broken driveshaft at the moment) I'll get pics up this week.

Bought a 79 RS600 today. My first R Model, in fact; its my First Mack. I have driven R models a bit in the past and have always liked them. I have the E?300 in mine, its a 1983 Model engine and he 12 speed transmission. There are no tags or shift pattern stickers inside saying which tranny it is but im assuming its a 12. 5 main gears with a Direct and OD and R on the air knob and the "bull low" stick next to the seat. I can shift it alright but I think Im missing something,...im still grinding more then I think is normal. What is the proper protocol for shifting these things? When you upshift from direct to high, do you simply move the selector knob towards H as you get off the throttle? Do you clutch and get off the throttle? And downshifting, do you move the selector and throttle up to match revs or clutch and throttle? And upshifting the main gears, do you preselect D as you prepare to upshift to the next gear??? Any info would be great. Thanks