Popular Post keg1 Posted May 7, 2016 Popular Post Share Posted May 7, 2016 Just picked up my new toy. 1985 R685st 300 5 speed. Not real crazy about the 5 speed but will have to do for now. Cab needs painted and interior needs a good going over. Nice frame and cab and doors are real solid. I made it one year as a company driver but just had to get my own again. 16 Quote Link to comment https://www.bigmacktrucks.com/topic/45109-85-r-model/ Share on other sites More sharing options...
alex g Posted May 7, 2016 Share Posted May 7, 2016 Good looking R. Quote Link to comment https://www.bigmacktrucks.com/topic/45109-85-r-model/#findComment-332541 Share on other sites More sharing options...
Timmyb Posted May 7, 2016 Share Posted May 7, 2016 Good work, after looking a few of your previous posts I'd say that trucks in good hands. Quote Link to comment https://www.bigmacktrucks.com/topic/45109-85-r-model/#findComment-332554 Share on other sites More sharing options...
NJ TRUCK Posted May 7, 2016 Share Posted May 7, 2016 Nice looking, original R Model, getting harder to find everyday. Whats the plan? Work with it as is, restore, keep it in storage? Being a tandem tractor, and having to pull heavier loads, I would prefer a 9 speed over the 5. Quote Link to comment https://www.bigmacktrucks.com/topic/45109-85-r-model/#findComment-332571 Share on other sites More sharing options...
keg1 Posted May 7, 2016 Author Share Posted May 7, 2016 1 hour ago, tg144 said: Nice looking, original R Model, getting harder to find everyday. Whats the plan? Work with it as is, restore, keep it in storage? Being a tandem tractor, and having to pull heavier loads, I would prefer a 9 speed over the 5. i know what you mean about the 5 speed. Whats even worse i was told it was a 300 and stupid me i didn't check tag on motor until today and its only a 250. i know where there was a MH with a 350 and 10 speed so if its still there it will make a good parts truck. The cab and frame were rough on the MH.I plan on a quick paint job and putting it to work. Some would say I'm nuts been working for a company driving a 2013 Pete, real nice truck but its just not the same. Quote Link to comment https://www.bigmacktrucks.com/topic/45109-85-r-model/#findComment-332579 Share on other sites More sharing options...
mowerman Posted May 8, 2016 Share Posted May 8, 2016 nice lookin rig...too bad about the motor,i wouldnt have cheched it either,,,i used to run a 350,,,9 speed excellent good combo with doubles and mountains....good luck with it...bob Quote Link to comment https://www.bigmacktrucks.com/topic/45109-85-r-model/#findComment-332651 Share on other sites More sharing options...
1965 Posted May 8, 2016 Share Posted May 8, 2016 11 minutes ago, 1965 said: Use to help a friend that had a Rmodel & CH; 88 Rmodel 300 5 speed; 91CH 300 9speed; both nice trucks bought from same man used to haul milk R was geared too high for grain hauling but we worked with it; & heavier; the R would out perform every time; from red light to red light; going up hills didn't matter R wasn't turned up either; only 1 I've driven that didn't hale black smoke; just good haze Quote Link to comment https://www.bigmacktrucks.com/topic/45109-85-r-model/#findComment-332661 Share on other sites More sharing options...
Popular Post Wobblin-Goblin Posted May 8, 2016 Popular Post Share Posted May 8, 2016 Sweet. I think a well-maintained R model from the '80s with the right combination of engine and transmission would make a good tractor even today. 5 Quote Link to comment https://www.bigmacktrucks.com/topic/45109-85-r-model/#findComment-332664 Share on other sites More sharing options...
cf685f Posted May 8, 2016 Share Posted May 8, 2016 Awesome find. Nice color too. Quote Link to comment https://www.bigmacktrucks.com/topic/45109-85-r-model/#findComment-332668 Share on other sites More sharing options...
keg1 Posted May 8, 2016 Author Share Posted May 8, 2016 I had a 350 and 9 speed in my 89 and it ran great. I figured the 300 wouldn't be bad but I don't know about the 250. I used to run a 69 r model with a 237 so I guess I'll see how it does. Quote Link to comment https://www.bigmacktrucks.com/topic/45109-85-r-model/#findComment-332695 Share on other sites More sharing options...
Lmackattack Posted May 9, 2016 Share Posted May 9, 2016 nice looking truck... It should be fairly easy and cheap to turn that into a 300. I think it may just be pump settings? possibly injectors? Quote Link to comment https://www.bigmacktrucks.com/topic/45109-85-r-model/#findComment-332712 Share on other sites More sharing options...
Vladislav Posted May 9, 2016 Share Posted May 9, 2016 Nice solid R. 250 geathered with 5 speed seems too much for a calm ride though. Quote Никогда не бывает слишком много грузовиков! leversole 11.2012 Link to comment https://www.bigmacktrucks.com/topic/45109-85-r-model/#findComment-332771 Share on other sites More sharing options...
Timmyb Posted May 10, 2016 Share Posted May 10, 2016 So since the truck has a 5 speed, is it the low reving engine? Quote Link to comment https://www.bigmacktrucks.com/topic/45109-85-r-model/#findComment-332833 Share on other sites More sharing options...
mack mhe9 Posted May 10, 2016 Share Posted May 10, 2016 Nice set up. Quote Link to comment https://www.bigmacktrucks.com/topic/45109-85-r-model/#findComment-332841 Share on other sites More sharing options...
keg1 Posted May 11, 2016 Author Share Posted May 11, 2016 20 hours ago, Timmyb said: So since the truck has a 5 speed, is it the low reving engine? 1750 rpm will only run about 60 mph. It has the 3 leaf rear springs , aluminum rearends, which I don't think I've ever seen. Everything seems lightweight on it and I don't know what ratio the rears are but I wouldn't they would be that low. Quote Link to comment https://www.bigmacktrucks.com/topic/45109-85-r-model/#findComment-332891 Share on other sites More sharing options...
Yoos Brothers Construction Posted May 14, 2016 Share Posted May 14, 2016 Sounds like its got 4.17s . The speed would be a direct not an overdrive. Quote Link to comment https://www.bigmacktrucks.com/topic/45109-85-r-model/#findComment-333291 Share on other sites More sharing options...
Underdog Posted May 14, 2016 Share Posted May 14, 2016 i know what you mean about the 5 speed. Whats even worse i was told it was a 300 and stupid me i didn't check tag on motor until today and its only a 250. i know where there was a MH with a 350 and 10 speed so if its still there it will make a good parts truck. The cab and frame were rough on the MH.I plan on a quick paint job and putting it to work. Some would say I'm nuts been working for a company driving a 2013 Pete, real nice truck but its just not the same. Not nuts at all, I hear where you're coming from. Sometime this year I will pull the trigger and leave my current cushy company job and put my 1985 MH on the road. It's hard to go to work for a big company after being self employed. Quote Link to comment https://www.bigmacktrucks.com/topic/45109-85-r-model/#findComment-333294 Share on other sites More sharing options...
MACKS Posted May 14, 2016 Share Posted May 14, 2016 Nice truck,if you really want to go old school put a quad box behind that 250,it will still dye on the hills but will run out great on flat ground no matter how heavy you are.. Quote Link to comment https://www.bigmacktrucks.com/topic/45109-85-r-model/#findComment-333298 Share on other sites More sharing options...
mackdaddytruckfixer Posted May 14, 2016 Share Posted May 14, 2016 I still run older equipment like this everyday and have had good luck doing it. What I have found out is if it needs something just do it down to the inside light. Quote Link to comment https://www.bigmacktrucks.com/topic/45109-85-r-model/#findComment-333302 Share on other sites More sharing options...
Popular Post keg1 Posted May 14, 2016 Author Popular Post Share Posted May 14, 2016 My parts truck showed up Friday. Getting some sanding done even had my helper working on it. Everything is really solid just had a lot of chips in it. Its still the original paint which isn't bad for this part of the country. 3 Quote Link to comment https://www.bigmacktrucks.com/topic/45109-85-r-model/#findComment-333318 Share on other sites More sharing options...
mackdaddytruckfixer Posted May 14, 2016 Share Posted May 14, 2016 Looking good keep the updates coming. I buy these older trucks and put them to work alot of guys use them as show trucks I like to run a little different. Quote Link to comment https://www.bigmacktrucks.com/topic/45109-85-r-model/#findComment-333321 Share on other sites More sharing options...
keg1 Posted May 14, 2016 Author Share Posted May 14, 2016 20 minutes ago, mackdaddytruckfixer said: Looking good keep the updates coming. I buy these older trucks and put them to work alot of guys use them as show trucks I like to run a little different. Im with you. New stuff doesn't excite me much. I tore my Superliner down over 3 years ago to fix a few things but got carried away with it. This ones getting prettied up a little and going to work. No def, no eld, no problem. 2 Quote Link to comment https://www.bigmacktrucks.com/topic/45109-85-r-model/#findComment-333330 Share on other sites More sharing options...
85snowdog Posted May 15, 2016 Share Posted May 15, 2016 (edited) I'm sure, going by everything else you've done , it will be whipped into shape in no time. Hopefully everything goes smooth with your new endeavour. Edited May 16, 2016 by 85snowdog Quote Keith Link to comment https://www.bigmacktrucks.com/topic/45109-85-r-model/#findComment-333458 Share on other sites More sharing options...
keg1 Posted May 15, 2016 Author Share Posted May 15, 2016 On May 14, 2016 at 3:58 PM, Yoos Brothers Construction said: Sounds like its got 4.17s . The speed would be a direct not an overdrive. I checked today 5.73 I think that explains the 60 mph. Quote Link to comment https://www.bigmacktrucks.com/topic/45109-85-r-model/#findComment-333463 Share on other sites More sharing options...
keg1 Posted May 15, 2016 Author Share Posted May 15, 2016 (edited) 12 minutes ago, 85snowdog said: I'm sure, going by everything else you've done , it will be whipped into shape in no time. I kinda wish I knew you were looking for an R. I would have talked to you about my 1988. Hopefully everything goes smooth with your new endeavour. Thanks. Im just trying to get it to look half decent. Edited May 15, 2016 by keg1 1 Quote Link to comment https://www.bigmacktrucks.com/topic/45109-85-r-model/#findComment-333464 Share on other sites More sharing options...
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