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Post by northernfarmer on Mar 11, 2024 14:04:30 GMT -6
We run a Mack with 500hp D13/MP8 engine and 18 speed in our tandem and pull a pup for winter grossing up to 45t. Driveline handles it no problem, not the fastest truck out there but beats any older farm truck or cheap company rig. Was a super-b spec truck when we bought to put the box on. Not sure on the exact ratio but 100kmh is just over 1600rpm which works nice, this lower gearing makes a big difference no matter the engine/hp. Drop the emissions junk, put the 505hp tune in and it would pull just fine with good gearing. I put some numbers into the Spicer calculator, basing off of the top ratio of an 18 speed spicer, 24.5 tires and 4.56 gears and that was very close to what your gauges are telling you. Having said that, if your tires are smaller or either the speedo or tach is off a bit that puts errors into the "on paper" calculations. But for arguments sake lets say this is correct, gives a great gear to get the load moving, yet reasonable rpm for top end as long as one doesn't feel the need to be blowing everyone off the road with speed. That narrows up the rpm gap between each gear which allows one to shift sooner if desired or take full gears further up the pattern before splitting. Over the highway long distance haulers that are looking to get the best mileage possible would shit themselves with that gearing but yet for farm use and not insane hauling distances it works. Sure better than some high geared truck that gets the shit kicked out of the clutch to get rolling. |
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Post by meskie on Mar 11, 2024 14:09:21 GMT -6
We are 1650ish rpm at 100km/h on our truck with 4.56s. 24.5 with a 18 speed. Was geared for pulling super B tankers at 90km/h in its previous life.
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Post by kevlar on Mar 11, 2024 14:33:50 GMT -6
We are 1650ish rpm at 100km/h on our truck with 4.56s. 24.5 with a 18 speed. Was geared for pulling super B tankers at 90km/h in its previous life. Ex- Paul’s Hauling? |
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Post by meskie on Mar 11, 2024 14:42:57 GMT -6
Tri Mac truck
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Post by northernfarmer on Mar 16, 2024 12:17:29 GMT -6
There might be a tire thread on here somewhere but oh well, as this pertains to a pickup anyway. So I have an older farm beater 4x4 3/4 ton with 235/85R16 tires and they are shot so need a new set. Most of what it does is pound up and down the gravel and the usual mud situations on shitty back roads or in the field so what fits the use best is a mud tire as most all-terrains typically don't cut it when it comes to mud. The worn out dry rotted sidewall ones on the truck now are some obsolete Yokohama but they worked pretty good, before that I had Toyo M55's and while they are great for taking a beating on gravel I didn't have the traction in mud with them. So thought I would ask what others have been running with that same mud capability and gravel punishment in mind. Of course I would like to find something cheap and good, I doubt that exists and don't know what to make of the Chinese tires, if they fall apart from dry rot or melt off on gravel. I have run the BFG mud terrain on a half ton and well its ok in mud but sure wears/chips down pretty darned fast.
Looking online at tire shop listings and what options are out there and actually available as only so many companies make that size ( pizza cutter size ... narrow rims so only that type of size fits ) and one tire that caught my eye ( have never seen in person in this size ) is the Firestone Destination M/T2. Here's the image and info on that size I borrowed from Kal Tire.
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Post by meskie on Mar 16, 2024 12:52:41 GMT -6
Put a set of cooper rugged trek on my truck so far they seem good. Will see how they do in the mud this spring.
Couple guys run the cooper destination MT. They are similar to the ones you posted and seem to like them. That was a few years ago tire quality seems to have gone down some so who knows now what they are like.
I always liked the duratrac but they are far too expensive now. Priced themselves out of the market is what the tire shop told me. They don’t sell many of them at all anymore.
Another tire they have been having decent luck with is the sailun terramax rt. Not sure how it would hold up on a farm truck loaded down on gravel all the time.
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Post by northernfarmer on Mar 16, 2024 15:50:52 GMT -6
I like the look of the Cooper rugged trek tire although that one as well I have never seen in person and you know how it is with different sizes having different gaps so aggressiveness can vary by size with any tire. So I looked up each tire you named off and the only tire that is made in the size I require is the Goodyear Duratrac, all the others you mentioned are not in each of the manufacturers listings so that makes it frustrating.
However that prompted me to look through the list of cooper tires that do claim to exist in that size and was the STT Pro so I will add that one to my question list as I talk to the tire shops next week.
So when you sink your truck up to the bottom of the doors this spring in a field, be sure to take a photo and you can put a caption below saying "I found the hard pan" !
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Post by meskie on Mar 16, 2024 16:15:17 GMT -6
I just realized you’re looking for 16” rims and lots of the new tires don’t come in that size as most new vehicles don’t have that size of rim on them. Sure hope I don’t sink my truck up to the floor boards this spring but you just never know. It does have the off road package so it should be made for that……
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Post by iamwill on Mar 16, 2024 19:35:30 GMT -6
Your cheapest option might be to get a used set of tires and rims. Pretty much anything with the right bolt pattern would work. Lots of sets with decent tread on Kijiji for way less than than new; and wider tires will give you more flotation in the mud. My wife's truck needed tires and new duratracks installed were over $2300 for a set. Ended up finding some used duratracks with about 70% tread for $500 (for the set), a little bigger but her rims were wide enough to make it work.
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Post by northernfarmer on Mar 16, 2024 20:48:18 GMT -6
I had been looking at kijiji the other day to see what if anything was around for wheels for a newer vehicle to rig up a set of winter tires and it was slim pickings around here, all I saw were some sets of 20 inch wheels with tires on ( for a GM truck ) that had been taken off after a bit of use as I imagine they put some fancy aftermarket wheels on with bigger tires ( no doubt a lift ) and they wanted between 3000.00 to 3500.00 which sadly would be a bargain compared to buying new factory rims. I don't know what rims of newer Fords would even fit and as to coming across good used tires of my size on their own would be rather unlikely. I even called the main company in town that parts out vehicles and they didn't seem to have much of anything. I'll see what the tire shop I tend to go to has for prices, typically they are less than Kal Tire as they have never known to be cheap although this is interesting and they may have done this for a while now as they charge 20.00 a tire to mount and balance as long as one is buying the tires ( am sure a random drive through tire repair would be a lot more than that ). Costco used to be thee place to get the best price on tires that they handled ( but what a fricken hassle dealing with their shop ) but I sure don't see that now as they charge just as much as as a lot of tire shops do. Their gimmick is free tire swaps for winter/summer tires I believe and guess what, everyone else is lined up a mile long to do the same thing.
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Post by meskie on Mar 16, 2024 21:06:46 GMT -6
I think the super duty wheels use the same bolt pattern from 99ish to current. I’m guessing it’s a superduty if it’s using the 235/85/16 tires.
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Post by northernfarmer on Mar 16, 2024 21:25:35 GMT -6
That's good to know as this is considerably older than that, I don't know that they had invented the name Super Duty until years after this truck was made and its a bit of a one off truck anyway as its got a light duty rear axle as in semi floating on a 3/4 ton.
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Post by northernfarmer on Mar 18, 2024 17:37:18 GMT -6
So I went to the tire shop I tend to deal with most for pickup tires ( they are a car and light truck tire store, they don't do farm or heavy truck tires ) as he tends to have better prices and deals in a lot of brands and I decided on a set of the Firestone Destination M/T2 tires as he recommended them as well for the type of gravel abuse they are subjected to so he has them on order. While I was not after the Goodyear Dura Trac that was mentioned as I was looking for something a bit more aggressive, I though I would mention that the Dura Trac are on sale right now, through the Fountain Tire stores ( have no idea for how long, never asked ) and at the moment at Canadian tire until the 20th of this month ( can call in and get a quote locked in at the sale price though ) which to be honest I tend not to buy tires from Canadian Tire. Anyway for someone on here wanting Dura Trac tires on the spot, thought I would mention it as that is a certain amount of a savings as the Fountain Tire store said 15 % off.
All prices include set of four tires, mounted and balanced and GST ( no Alberta tax )
Based on size LT 235/85R16 10 ply ------------------------------------------------
- Firestone Destination M/T2
At Tire Pro - 1470.00
At Canadian Tire - 1810.00
- Goodyear Dura Trac
At Canadian Tire - 1480.00 ( he mentioned sale price was 302.00 per tire, regular price was 380.00 )
At Fountain Tire - 1523.00
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Post by meskie on Mar 18, 2024 19:50:02 GMT -6
Goodyear must have lowered the price on their duratracs as they are way less now than they were when I priced them in December. Even without the 15% sale price they are less.
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Post by northernfarmer on Mar 18, 2024 20:10:24 GMT -6
You would have to ( or maybe you have ) priced out the size you were looking at in the last while as the prices on other tire sizes go to the moon as per "newish" sizes. Take that 275/65R20 size, its fricken insane for some tire models and for example the Firestone M/T2 in that size at Kal tire is 585.00 for just the tire, and the newish Yokohama MT G003 is 698.00 ... that's right, one mud tire for that price. Just a few years ago 700.00 was on the high end for a 11R24.5 truck tire. They are ripping our assholes wide open to put it bluntly !
Here's the thing, down in the states some of these same tires are far cheaper, yes priced in US dollars but still far less than what we are paying for up here, why is that ?
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