Replacing Axle on 13' Boler American - Fiberglass RV

Thread Tools Search this Thread Display Modes
Old 06-16-2006, 11:08 PM   #1
Senior Member
Roy in TO's Avatar
Name: Roy
Trailer: 1972 boler American and 1979 Trillium 4500
Posts: 4,852
I'm going to replace the torsion axle on my 13' Boler American. The original has a 13" rim with 4 bolt pattern. (I can see the axle tag, but have not slithered under the trailer to read it yet.)

I have yet to see a new axle to match the original. Most the new axles seem to be 5 bolt with 14" rim. Do they still make the originals?

Will switching from a 13" 4 to a 14" 5 cause any problems other than figuring out the correct tire profile or aspect ratio?

What angle was the leading arm originally designed at?

Any advantage to using a 2" lift if I will be primarily towing with a 4x4 Ranger. I recall reading somewhere that some people feel there is as much if not more air dam from under the trailer as over the trailer when towed with high vehicles.

If I change the lift, do I need to alter the arm angle?

Anything else I have not considered and should?


Roy in TO is offline   Reply With Quote
Old 06-20-2006, 10:54 PM   #2
Senior Member
Pete Dumbleton's Avatar
Trailer: Scamp
Posts: 3,072
Send a message via Yahoo to Pete Dumbleton
You can order a new axle with either 4 or 5 lugs on the hub; likely the newer ones come with 5 because the load capacity of the 5 lug wheel is slightly higher than that of the 4.

Same is true of automotive hubs; more lugs usually translates to greater load capacity.

Pete Dumbleton is offline   Reply With Quote
Old 06-21-2006, 06:02 AM   #3
Trailer: Scamp
Posts: 66
I ordered a new axle yesterday for my 13' Scamp. I changed to a 5x4 1/2" wheel pattern & ordered the axle w/trailing arms vs. the factory installed leading arms. It was originally 22.5 degree down, I ordered a 0 degree arm.

Pictures of installation to follow.

Don Meyer
Don Meyer is offline   Reply With Quote
Old 06-22-2006, 07:38 AM   #4
Junior Member
Trailer: 1975 13 ft Boler
Posts: 20
Send a message via MSN to James Hutt Send a message via Yahoo to James Hutt
Hello Roy:
I had the axle replaced on my 1975 13 foot Boler last year. The shop that did it also replaced the spindles and added two inches to the lift. I stayed with the 22.5 degree forward angle on the torsion arms with a new Dexter axle installed.
The two inch lift was a great boon when traversing rough ground and I would recommend this change.
I have put over 12000 miles on the trailer since then and took it over some of the roughest roads in Mexico last winter with no problems.
The new axle included grease fittings that allow for lubricating the bearings without taking the wheels apart.

James Hutt is offline   Reply With Quote

axle, boler

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Replacing Axle Vicki A. Towing, Hitching, Axles and Running Gear 1 05-25-2010 06:11 PM
American Boler Axle Libby F. Towing, Hitching, Axles and Running Gear 1 03-24-2010 09:46 PM
Replacing Scamp Axle Pete Dumbleton Care and Feeding of Molded Fiberglass Trailers 2 02-23-2008 11:59 AM
Replacing Axle JohnWalker Towing, Hitching, Axles and Running Gear 8 04-26-2006 04:02 AM
Replacing the axle Legacy Posts Modifications, Alterations and Updates 17 01-22-2003 04:54 PM

» Upcoming Events
No events scheduled in
the next 465 days.
» Virginia Campgrounds

Reviews provided by

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2015 Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 03:11 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.