Trailer

 Here's the trailer I scored to tow my buggy

A big thanks to my friends Mike and Chad for finding, checking out, buying, and delivering it for me....what great friends I have!

It's a little rough, but pretty heavy duty.  It should clean up nicely, and I only paid $900 Cdn ($540 US)

Here are some specs and pics:

Width: 

    of decking            93.5"

    between fenders    77.5"

    of frame                97.5"

Tires:

   Goodyear Special Service 8-14.5 LT, Load Range E (27" x 8")

Axles:

   Dual, with electric brakes, est. 6000lbs cap. each?

 
Length:

   Of decking                       14'

   Of frame (incl. dovetail)   15' 1"

   Overall                            18' 6"

   Of tongue                         3' 6"

Weight:

   Net  ????

   Gross ???

Wheels:

   Funky 5 bolt things...almost like a stock car "wide 5"

 

Dcp_4835.jpg (104809 bytes)  Don't know what the point of those vertical "stanchions" are..but I think they'll have to go. Dcp_4838.jpg (90866 bytes) Nice and wide, and very HD, but a little rough....in places this guy didn't even chip the slag before painting !!!!
Dcp_4841.jpg (100537 bytes) Fenders are 1/4" steel, so nice and easy to drive over Dcp_4840.jpg (88748 bytes) It's got a mini-dovetail thing at the back, and no ramps.  Shouldn't be a problem to just drive on up
Dcp_4837.jpg (92689 bytes) The business end Dcp_4836.jpg (70272 bytes) The pintle hook it came with
Dcp_4844.jpg (63492 bytes) The axles look bigger than the std 3500lb offerings...maybe 6000lb jobbies! Dcp_4847.jpg (54889 bytes) construction details
Dcp_4839.jpg (93039 bytes) Lots of steel in the construction Dcp_4842.jpg (73856 bytes) Funny looking wheels....maybe these are common on trailers??

Edit:  I found out these are mobile home axles and wheels.  Also sometimes called "California wheels"  I've no idea why.  They're very common on trailers around here, and the same style of wheel I have noticed on a lot of heavy dump trucks and delivery trucks.  Apparently, some can have problems because the bearings and brakes are not serviceable or replaceable (being intended for a one-time move of a mobile home).  I haven't yet verified if mine are like this or not.

 

Dcp_4966.jpg (110088 bytes) I cut off the excess steel, put on all new lights and conspicuity tape reflectors, and painted it Dcp_5084.jpg (95989 bytes) The Wolf loaded on the trailer
Dcp_5085.jpg (100231 bytes) That's my buddy Chad's beautiful new 1 ton SuperDuty hauling it Dcp_5087.jpg (76637 bytes) Chained down
Dcp_5088.jpg (128305 bytes) Adjustable quick-release chain tensioner    

NEW SECTION - Axle R&R

Time to replace or re-pack and adjust the wheel bearings, and buy some new tires for the trailer in prep for the 2003 season.
Dcp_4842.jpg (73856 bytes)1 This is what the wheel and hub look like assembled 2 The first step is to remove the wheel bolts and little wedge blocks that clamp the wheel onto the hub.  This close-up shows how it works
3 Once the tire and rim are removed, you pry off the hubs' grease cap with a screwdriver, and here's the hardware you have to remove to remove the hub.  It's simply a cotter pin, castellated nut, and washer that bear on the outer wheel bearing.  Remove cotter pin, nut, and washer and the outer bearing falls out and the hub slides off the spindle.
4 Here's what the removed hub looks like from the outside.

You prob can't see it in the pic, but 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.

Weird huh?

5 Under the hub is the brake assembly.  Pretty standard drum brake components, at least in function (I haven't checked dimensions for replacement possibilities yes). 6 However, not in this pic that the brake "backing plate" is welded, not bolted, to the axle tube, so replacement of the whole brake assembly (rather than individual parts) will require creative fab work.  Pic also shows the hole in the threaded spindle through which the cotter pin slides.
7 back side of the hub / brake drum assembly showing the inner wheel bearing race.
8 Here are the wheel bearings, with Timken numbers.

I had read that these bearings were non-replaceable or non-serviceable.  Well, they are certainly available, you can order them by part number from any good bearing shop.  Alternatively, the chart below gives some applications you can quote for the same bearing (info taken from www.timkeninfo.com) .

The prices I was just quoted (Mar 2003) by my local suppler, in Canadian $, are

Outer bearing - Timken LM67048 - $8.65

Outer race - Timken LM670101 - $4.19

Inner Bearing - Timken 25580 - $18.10

Inner race - Timken 25520 - $9.10

At first I was concerned that they may be considered "unserviceable" due to the manner in which the bearings and hub are retained.  That is to say, I can foresee problems setting the proper wheel bearing pre-load because of the lack of adjustability with the single-nut-and-cotter pin setup.  Particularly if you look at the large distance between the slots in the castellated nut in pic#3 above.  There's obviously a pretty limited range of adjustment, because of this large gap, because if it's not quite right, you have to either tighten down or back off the nut quite a lot (in big steps) to reach the next slot through which you can fit the cotter pin.

Turns out my fears were unfounded and that this assembly / arrangement is extremely common on all types of trailer axles.  See below for a couple of procedures on how to adjust them.  The short story is, screw on nut to finger tight, while rotating hub.  Continue rotating hub while tightening another 1/4 turn or so to seat/preload bearing.  Back off nut till loose.  Screw up finger tight again, then back off to the first slot where you can install the cotter pin.

 

A little more research also turned up the fact that the bearing combo of inner 25580/25520 and outer LM67048/LM670101 is also very common on 6 and 7000 lb trailer axles.  You can find these bearings at any trailer supply house.

9

10

As you can see - all my brakes turned out to be complete junk.

About the Mobile Home axle brakes.  I also discovered that mine are 12"x2", and that this is a common size on 6 and 7000lb conventional trailer axles.  At first, I figured, there's probably no reason I can't fit "regular" 12x2 brake shoes, springs, and the little star adjuster on my mobile home welded-on backing plate.  However, I was not able to verify this for sure because, by the time you add up the cost of shoes, springs, adjuster, and magnet...you end up only $12 less than the cost of a complete 6000lb axle brake assembly - already assembled (no messing with those awful springs) on a backing plate with new magnet.  Yes, this backing plate is designed to be bolted to the flange on a regular trailer axle, but it will be simple for me to adapt.  I shall simply cut and grind the old backing plate off, make a 1/8" square steel flange drilled to match the new backing plate, slide it on the tube.  Bolt the backing plate to it, install and adjust hub, slide brakes to right position, square everything up (I'm lying here - I'll prob. just eyeball it as usual), and weld on the custom flange.  Certainly can't be any harder than a custom disk brake conversion on a 4x4 and I've done a few of those.

UPDATE

Finally bit the bullet and bought new tires.  It was a difficult decision to dump so much cash on brand new tires in such an odd size.  However, I was convinced it was the right decision for the following reasons:

In my recent research I have read a lot of articles and stories about how it is essential to run properly rated trailer tires when towing a heavy load like 7-8k lbs.  Regular passenger car/truck tires do not have the required sidewall strength and using them leads to dangerous blowouts.

Considering how tough the tires are - Goodyear, bias ply, 7 ply tread, 8 ply sidewall, and how much I'll use the trailer, and that the last set were probably original and on there since the mid 70s, they should last me about forever.

While an odd size, the local Goodyear commercial tire place has them in stock, so they can't be that rare or odd

I've read to may towing horror-stories to cut any corners with the towing gig.  These are the right tool for the job, safe, and are probably not that much, if any more expensive than similarly rated 15" trailer tires of equivalent quality.

Total bill came to $594 Cdn for four installed, new valve stems (metal), old tire disposal fee, and taxes.

Here's the sticker.  Made in Brazil...hey those guys sure should know their rubber....it grows there after all.  Yep - that says load range F !!
Here they are in all their glory
Not the sexiest tread, but reminds me of a lot of long-haul 18-wheelers....a good sign
WOW - look at that capacity. 2790 lbs each at 100 psi!!
See, I wasn't kidding - they're 8-14.5
Fancy new valve stems.

Sure they're not the new 42" TSLs I really want - but new tires of any kind are cool....I love tires!

Here's the bearing apps, should you need them:

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

Here's the wheel bearing adjustment procedures:

Method 1


6. You are now ready to slide the hub or hub drum onto the spindle. Clean the spindle with a rag. (NOTE: The inner surface of the bearing and the spindle shaft are machined to close tolerances. If the spindle is marred, unclean, or if the rear bearing is not square with the spindle shaft, the bearings may temporarily hang up as you slide the hub in place. Once the hub or hub drum is fully in place on the spindle, slide the outer bearing onto the spindle and into the hub. (Match the cone of the bearing to the race. DO NOT INSTALL THE BEARINGS BACKWARD!
7. At this point you are ready to pre-load the bearings. Whenever you install new hubs onto an axle, or whenever you install new bearings and races into existing hubs, you should pre-load the bearings. Pre-loading the bearings assures that the races in the hub are 100% in place against their machined stop points and keeps the hub from wobbling after a few miles.
8. To pre-load the bearings, install the spindle washer and spindle nut onto the spindle with the hub and bearings in place. Tighten the spindle nut finger tight (until snug) and then with channel-lock pliers or a crescent wrench, tighten the spindle nut another 1/4 turn or about 15 to 20 ft pounds of torque. Now turn the hub five to ten revolutions. This will fully seat the races. Now loosen the spindle nut very loose, then re-snug to finger tight, and engage the nut retaining device. (Some reverse lubricating spindles use a tab washer for the retaining device)
9. After 20 to 40 miles of highway travel, check to see if the hub is loose on the spindle. Pull the tire in and out a few times. If your hub is loose, you will need to re-snug the spindle nut and re-engage the nut retaining cotter pin or tab washer. NOTE: Never reuse the same tab on the tab washer. They are designed to be used one time only).
Never run your spindle nut to tight, this will cause your bearings to over heat. And never run your bearings too loose. A very slightly loose spindle nut will run adequately, but too loose and the individual rollers may come apart in the bearings, causing the hub to fracture.
You are now ready to install your dust cap. A short piece of 2" I.D. water pipe makes a good tool to install either a plain dust cap or the SPINDLE-LUBEŽ dust cap for the 3500# axle.
If you are installing brakes on a "plain" spindle axle, we recommend that you use plain dust caps and not "bearing protectors" (Bearing protector refers to the spring loaded dust cap device with a grease zerk fitting in the piston.) Bearing protectors add two to four PSI of pressure inside the hub cavity and in many cases, they cause grease to leak past the seal. If sufficient grease leaks past the seal on a brake hub drum, it will centrifuge out with some grease getting on the brake shoes. Grease on your brake shoes will drastically decrease your braking capacity.
 

Method 2


If the hub has been removed or bearing adjustment is required,
the following adjustment procedure must be followed:
1. After placing the hub, bearings, washers, and spindle nut
back on the axle spindle in reverse order as detailed in the
previous section on hub removal, rotate the hub assembly
slowly while tightening the spindle nut to approximately
50 lbs.-ft. (12" wrench or pliers with full hand force.)
2. Then loosen the spindle nut to remove the torque. Do not
rotate the hub.
3. Finger tighten the spindle nut until just snug.
4. Back the spindle nut out slightly until the first castellation
lines up with the cotter key hole and insert the cotter pin (or
locking tang in the case of E-Z Lube.)
5. Bend over the cotter pin legs to secure the nut (or locking
tang in the case of E-Z Lube)
6. Nut should be free to move with only restraint being the
cotter pin (or locking tang.)

 

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