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Old 03-16-2003, 03:50 AM   #1 (permalink)
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The Truth about mobile home axles......

....at least about mine.

I have been in agony over the fact that my trailer needs 4 new tires, to the tune of $600, and they are a very special 14.5" size. The trouble is, what if I spend all that and then find out that the bearings and brakes are not replaceable or servicable as some have told me. Arrrgh.

So I started tearing into it in the snow. Turns out the bearings and seals in mine are very common trailer parts found on 6000 and 7000 lb axles. They're available everywhere - Princess Auto, Parts for Trucks, Kinecor, etc.

Also - the brakes are a little strange, and yes, the backing plate is welded, not boltedm to the axle tube. BUT they are a common 12"x2" size (again, common on 6000 and 7000 lb axles). I haven't confirmed it yet, but I'd be very suprised if shoes and springs from "normal" 12x2 brakes didn't fit. Also, I can't see why it wouldn't be a pretty simple job to weld a small falnge on the axle tube, and then bolt on an entire new 12x2 brake assembly.

The only part that isn't replacable is the actual hub/brake drum assembly. However, they look in good shape, and can be re-machined, as they have a limit cast into them (more on this in a sec). Considering how much the trailer will be used, and how much actual trailer braking will occur in a year, I can see these lasting many, many more years.

I'm damn glad I did tear it down, and last year when we used it "as is" for a couple of trips, Chad, we were damn lucky to not have an accident. The bolts holding the rim clamped on where in terrible shape...i snapped many trying to remove them (going to have to spend some quality time with torch and e0z out) and they weer horribly corroded, bent, and just wasted. I bough 20 shiny new cad plated grade 8 Bowman relpacements.

Something I found really interesting, is that the hub/brake drum assembly has a maximum diameter figure cast into it, the type you see on normal automotive drums and rotors specifying the limits to which they can be machined during overhaul. Now, if these axles are indeed intended to be one-time use only hauling a mobile home one way....then why would this be so? I'm having a hard time picturing a mobile home being hauled so far that along the way, you'd have to stop, remove the home from the trailer, remove the brakes, have the drums machined, reload everything and carry on. Wierd huh?

Anyway, like I said, the bearings and seals are readily available, here are the numbers, and some auto apps if you don't have a bearing supply or trailer supply place nearby. Also available online from www.championtrailers.com and www.dexteraxles.com.


Outer Bearing

LM67048 $8.65

Apps

1988-2002 Camaro 2.8, 3.1, 5.0. 5.7 Warner T5, T5 World Class; 5 Spd.; frontCone

85-86 Mercury Capri 2.3, 3.8, 5.0 Warner T5, T5 World Class; 5 Spd.; frontCone

1988-2000 Pontiac Firebird any engine 5 Spd.Cone

Outer race

LM67010 $4.19

Apps

FORD 1984-85 ESCORT 1.6, 1.9, 2.0, ; MTX-III; 5 Spd.Cup

CHEVROLET 1993-02 CAMARO 3.4 3.8 5.7 Warner T5, T5 World Class; 5 Spd.; frontCup

FORD 1984-94 ESCORT GT 1.8 MTX-III; 5 Spd.Cup

FORD 1986-90 TAURUS MTX-II; 4 Spd.Cup

FORD 1984-94 TEMPO GL MTX-III; 5 Spd.Cup

PONTIAC 1988-2000 FIREBIRD ; 5 Spd.Cup

Inner bearing

25580 $18.10

Apps

PLYMOUTH 1965 BELVEDERE L6 3.7 3687 Exc. Station Wagon and Taxi; Cone

PLYMOUTH 1966 BELVEDERE L6 3.7 3687 Exc. Station Wagon and Taxi; Cone , differential bearing

PLYMOUTH 1966 SATELLITE L6 3.7 3687 Exc. Station Wagon and Taxi; Cone

Inner race

25520 $ 9.10

apps

PLYMOUTH 1966 BELVEDERE L6 3.7 3687 Exc. Station Wagon and Taxi; Cone , differential bearing

FORD 1970 LTD V8 5.0 9.375" ring gear: WDR, WFH axles; Cup

DODGE 1967 W100 SERIES V8 5.2 8.75" ring gear: 1.75" pinion shaft OD; Cup

Hub seal

Timken 440972
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Old 03-16-2003, 04:42 AM   #2 (permalink)
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Bella,

someone mentioned earlier that you can purchase regular 5 or 6 lug hubs for these mobile home axles spindles.

If that is true then you could then get
the cheapie wagon wheel spoke rims in standard sixteen/fifteen/fourteen sizes and then get the standard trailer tires.

In all your research did you come across this to be a true statement?

I have a perfectly good set of tandem mobile home axles that seems like I can used them. However they are the single leaf type and I would probably buy some
new multi-leaf trailer springs in the 5Klbs
range so I would have a 10Klb capacity.

I do know that on some trailer mfg's
they use the same bearings/axles/hubs/wheels combo
for 7Klb and 10Klb. However having said that....the same mfgs also offer a heavy duty eight lug version of 10Klbs as well.

Keeping in mind just like you said that this trailer will only be used a max
of ten times a year. The payload will be about 6.5Klbs but I just don't like the idea of trailering the limit weight springs if I were to use the 7Klbs ones.

Let me know if you find out anything about the stuff I mentioned above.

I just may build a trailer using these axles.

thanks

Denny
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Old 03-16-2003, 07:51 AM   #3 (permalink)
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Denny,

About the "regular" hubs. The inner and outer bearings match sets used on 6 and 7k axles, so we know the mobile home (MH) spindles are the right diameter as far as being able to take the reg hubs. The only thing left would be to measure the spacing between the bearings on the regular hubs and MH hubs or reg spindles and MH spindles.

I don;t have any reg spindles or hubs that take the 25580/25520 inner and LM67048/LM67010 bearing combo (usu. a 6 or 7k axle) to measure to caompare to my <H dpindles/stubs, but if I find out, I'll post it.

Anyone got the measurement?


ll start another thread too.
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Old 03-17-2003, 06:10 AM   #4 (permalink)
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Why not just weld some new centers in a set of 15" wheels?

Seems that would solve the problem of the $$$$ tires needed..
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Old 03-17-2003, 11:31 AM   #5 (permalink)
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Quote:
Originally posted by DRM
Why not just weld some new centers in a set of 15" wheels?

Seems that would solve the problem of the $$$$ tires needed..
14.5" wheels don't have centers, they are a clamp mount rim.
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Old 03-17-2003, 01:47 PM   #6 (permalink)
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Quote:
Originally posted by CrazyHorse

14.5" wheels don't have centers, they are a clamp mount rim.
Perhaps you miss my point.


Take a 15" wheel "shell", weld in a flat place center that matched the lug pattern of the axles he has.

he can toss those 14.5" wheels/tires in the trash as far as I am concerned
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Old 03-17-2003, 03:17 PM   #7 (permalink)
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David,

You miss his point. There's no point welding any kind of center in any kind of rim to fit may axles, as their is no standard "lug pattern" in th hub to bolt it to.

The rims have no venter at all, and attach to the hub with clamps.

Looks like this:



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Old 03-17-2003, 04:45 PM   #8 (permalink)
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There's no point welding any kind of center in any kind of rim to fit my axles, as their is no standard "lug pattern" in th hub to bolt it to.
Nah -- ya just gotta cut some splines into your hubs and run true knockoff wheels.



That would be a hoot -- I've even got a soft-faced knock-off hammer for you to use. Send me a pic of your trailer on spoked and spinners and I'll mail it right to you as your reward!

Randii (wanting to see a mobile home on spokes-n-spins)

Last edited by randii; 03-17-2003 at 04:47 PM.
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Old 03-17-2003, 07:29 PM   #9 (permalink)
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I still don't see the problem with my plan

See those 5 bolts with the cams that clamp the rim shell to the hub assembly? That is your lug pattern. Mak a custom center that fits on there, bolt it on.

Am I missing something here, or are you guys having trouble thinking outside of the box?
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Old 03-17-2003, 08:16 PM   #10 (permalink)
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Just do as David said. I will try to clarify. Shit can those tabs that hold the wheel in place. Then use the same bolts and bolt holes that are on the hub-easy as that. Does this help??
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Old 03-17-2003, 08:33 PM   #11 (permalink)
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I am wondering, how much have you spent on your trailer so far?
Problem i keep running into is that whenever i find a trailer, it always seems to be more than the $1500 to buy a new one.

Garrett
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Old 03-18-2003, 03:18 AM   #12 (permalink)
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David,

Exactly how cheap is a "regular" 15" Load range F 8 ply nylon bias trailer tire?? My tires cost $115 Cdn ea. (about 65 US)

You're suggesting I buy new wheels, machine out the centers, custom design and layout new centers to match my "wide 5" patern, machine said centers, have them welded in straight an true, and then buy new tires?? The idea might work, except that you end up with no tapered seating - in my setup regular bolts are used, the taper comes from the blocks. In others that use a lug stud - there is a taper in the female part. No way I'm mounting any kind of wheel with a flat bolt-on, so to match this you'd also have to machine the hubs???

Somehow your brilliant plan doesn't seem so brilliant to me?

Hey - aren't you re-centering some wheels yourself right now? Funny how people always seem to think what they are doing / have done is the brilliant solution

Good outside the box thinking though !

Hick - here's the rundown in Cdn $$. Scary - but the good thing is, you can always sell a trailer for what you have into it if it's half decent.

Initial purchase $900
Tax, liscence, registration $310
new safety chains, shackles, tie-down gear $154
Paint, wiring, connector, hitch pin, new lights $60
New tires (4) $575
New bearings $140
dust caps, seals, cotter pins, wheel bolts, bearing grease, washers, $65
New brakes $200 (one axle only)
Safety inspection $20

Grand total - $2424
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Old 03-18-2003, 09:30 AM   #13 (permalink)
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I looked into changing my KH axles (like MH but bolt on brake backing plates) hubs over to standard trailer hubs. http://www.trailerpartsandsales.com/wheel_hubs.htm
Has pretty good prices. If you search around there is some spindle size info out there on some of the trailer parts websites. I don't think swapping to standard hubse will be much of a issue. I'm running MH tires which are supposed to be illegal to run on anythng other than MH. At $65.00 US per tire for LT 14.5x8's, I think I'll run the MH tires until I have a problem. Looks like for about $120.00 I can swap the hubs over when my tires wear out . I think the problem with MH axles is they are too wide for most trailers and need to be cut down. Most of the MH axles have one thick leaf spring which is pretty stiff for conventional trailers. Also, the drop center wheels are a PITA to torque properly so they run true.
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Old 03-18-2003, 09:57 AM   #14 (permalink)
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BillaVista, Read this thread. It will give you ideas about tire pricing.......

http://www.pirate4x4.com/forum/showt...light=tires%2A
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Old 03-18-2003, 12:23 PM   #15 (permalink)
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Funny how people always seem to think what they are doing / have done is the brilliant solution
Lordy, ain't that the TRUTH? There's a fine line between 'learning from your mistakes' and 'misery loves company,' isn't there!

With the cost of those new 14.5" tires factored into the equation (presuming you have not yet purchased them) I'd look into procuring *NEW* 6-bolt or 8-bolt axles (well under $200 per axle, under $300 with brakes) and swapping them onto your springs. If you already bought the tires at >$100 per, then you can stop reading...

With a standard 6- or 8-bolt pattern, you could swap in good truck tires from just about anywhere... put out the word to your cronies that you're looking for take-off truck tires and you can probably find them cheap. Last set I got were free with less than 300 miles on them. I swapped them onto a set of $50 junkyard 6-bolt steel wheels off some truck... the sidewall states 3385lbs, D-rated, IIRC -- you *do* have to pay attention to this. Trailer tires would undoubtedly be better for this application, but these were cheap enough to sway me.

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Old 03-18-2003, 03:53 PM   #16 (permalink)
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Blue 84 - yea, that's the thread that convinced me I wanted to go with a trailer tire. Looks like at $96-120 Cdn "regular" trailer tires are pretty much the same range as my 14.5s.

So, I'm pleased with my decision (I did buy 4 new 8-14.5 Goodyears...Load Range F, 7 ply tread, 8 ply sidewall, 2790 lbs each at 100 psi, bias ply (nylon). $115 Cdn each

Certainly not worth doing some custom rim-recenter imho.

(but agin - cool outof the box thinking by DRM)

about the width of the mobile home axles (and the plan to swap to "regualr" axles) I looked really hard at that...but I'm lucky in that my trailer was built really wide (max legal) and heavy duty - and the "regular" axles, at least the common width, like used on your standard 6.5' wide trailer are too narrow, Didn;t want to try and custom order a wider axle or modify the trailer for more narrow axles. Kind of a double edged sword - but for those of us with big full-width axles, wide is good.

Randii....yea, ya see it all the time...somebldy spent a lot of time researching and sweating a decision, so they're super-spring loaded to reccomend what they decided as a super-dooper decision. I prefer to wait until someone has run something for a year or two, and then look for them to be the type that will admit a goof.
Who knows - perhaps next year I'll be warning everyone off MH axles.

But for now....It's the decision I made, so it's the smartest coolest thing going....so everyone should do it! <just poking fun at all of us obsesive web researchin' wheelers as a whole>

Good luck with the truck tires - if you have experiende I'm sure you cam make it work. I need nothing even slightly stacked against me, because to date the only thing I ever towed was my dad's boat as a kid which I jacknknifed horribly.

So I'm trying to set myself up with the deck loaded in my favour before the Wolf becomes Highway Pizza, and me with it
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