Spread tandem vs. Closed tandem axles - TheDieselGarage.com
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post #1 of 22 (permalink) Old 08-21-2006, 11:21 PM Thread Starter
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Spread tandem vs. Closed tandem axles

We are looking at getting a different bullrack (cattle pot), and was curious if there was really any advantage to get a trailer with spread tandems or not. Most of my loads are straight loads, but have been getting more split loads lately.

Currently run a '95, 102"x 50' spring ride closed tandem Wison pot. Wanting to get a newer trailer with air-ride. Have even been toying with the idea of a tri-axle pot. Would we need to have permits for any/all loads putting us over 80k for either, or both the spread or triple axle trailers? IIRC, someone told me that with the spread or tri axle, you can gross 81k (or more on the triaxle, depending on the particular state you are in).

Any thoughts? Should we stick with the 50-52' closed tandem trailers? Seeing more and more spreads, as of late. Have seen a few quad axle pots, too.

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post #2 of 22 (permalink) Old 08-21-2006, 11:29 PM
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Besides a little more wieght distribution I can't see any real benefits. On the down side I would think it would be harder to turn loaded and would be more wear and strain on the hubs and tires.
post #3 of 22 (permalink) Old 08-21-2006, 11:41 PM
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I drove a truck that belongs to a buddy of mine, pulling a spread axle cornhusker hopper trailer. Excellent going straight down the road. But driving around the elevator was a night mare on the rear tires, the trailer pivots on the front axle most of the time. And on the asphalt around the elevator, it would chew those tires up in a hurry. Just my .02.:Thumbup:

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post #4 of 22 (permalink) Old 08-22-2006, 11:43 AM Thread Starter
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That is kind of what I was thinking, too. I'd prefer a tri-axle with the rearmost axle being a liftable one for turns, or when deadheading. The extra carrying ability would be nice. I've had several times where I refused to leave, til they let me take some cattle off because was I too heavy. We aren't in the business to feed the bears you know.

We do have a triaxle dozer trailer that is spring ride. My biggest complaint with it is, that when backing around tight corners, you never which set of axles it will pivot on. Sometimes the front or rear. Can get you in trouble real quick in tight places. Sometimes it will pivot on one set, then switch to pivot on a different set as well. Gets interesting sometimes.

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Traded off- '97 3500 C/C, 4x4, CTD

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post #5 of 22 (permalink) Old 08-24-2006, 03:04 AM
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I spread my own on my G/n, just behind where it was originally. Helped the ride, spreads weight per axles a little better.

But!!! It eats up tires, harder to turn, blows out hub seals.

Conclusion: I pretty much wasted my time doing it, and it will continue to PIS* me off every time I buy tires.

I think the tri-with lift axle is what you need. It's the only choice for more weight.

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post #6 of 22 (permalink) Old 08-25-2006, 02:29 AM Thread Starter
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I know what you mean about the tire issue on the spread. Not as bad if you don't turn really tight, but not always a way to avoid it.

Neighbor has a 51' Wilson for sale. I suspect we'll be getting that one. Pretty decent shape. Has lots of lights, too. Ours doesn't.

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'93 W350 CC, LE, 5spd, HTT modded H1C, 4" DE

Sold- '99 3500 Q/C, SO CTD, 4x4, 5spd.

Traded off- '97 3500 C/C, 4x4, CTD

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post #7 of 22 (permalink) Old 09-03-2006, 04:02 AM
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We have a 53' featherlight spread axel trailer at work that I pull to the race tracks. It does help balance the weight better but it is real hard on the tires loaded or empty. I have to be real carefull in the old trucks stops with potholes that a small car would get stuck in. We had a driver pull that trailer once and he had a blowout in a lot because it ripped the tire off the bead in a deep pot hole. He was new to this kind of trailer and likely had made a hard turn over the hole? they do ride better as the spread does not follow the same "ripple affect" that the standard tandems pound into the ground.

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post #8 of 22 (permalink) Old 09-16-2006, 02:48 PM Thread Starter
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Well, we're still looking. Doubt we'll buy the neighbors trailer after all. He let us pull it home, to look it over closer, outside. Was all over it, and the more I looked at it, the more problems I found. Pulls MUCH nicer than our, though. Don't hardly feel it back there.

Will probably need to put 2-3 grand in it right off. Most of that in new virgin rubber.

"Some people are educated beyond their intelligence."

'93 W350 CC, LE, 5spd, HTT modded H1C, 4" DE

Sold- '99 3500 Q/C, SO CTD, 4x4, 5spd.

Traded off- '97 3500 C/C, 4x4, CTD

'92 W250, LE, CC, CTD w/ tweaked pump (SOLD)


"Obama = Hoax and Chains"

If Obama is the answer, it must have been a stupid question.
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post #9 of 22 (permalink) Old 10-02-2006, 06:24 AM
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If u go with a spread, add a drop valve to both axles, gives u a choice on which axle to take the pressure off of and really saves the tires in a turn

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post #10 of 22 (permalink) Old 10-02-2006, 06:59 AM Thread Starter
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If we got one, I would do that. Boss doesn't want to get a spread axle though. Says too much $$$$$$$.

Might have a lead on a 51', '02 Wilson pot. Alum wheels and lots of lights.

"Some people are educated beyond their intelligence."

'93 W350 CC, LE, 5spd, HTT modded H1C, 4" DE

Sold- '99 3500 Q/C, SO CTD, 4x4, 5spd.

Traded off- '97 3500 C/C, 4x4, CTD

'92 W250, LE, CC, CTD w/ tweaked pump (SOLD)


"Obama = Hoax and Chains"

If Obama is the answer, it must have been a stupid question.
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