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  1. #11
    Join Date
    Dec 2006
    Location
    Tigard, Oregon
    Posts
    3,016

    Default

    Quote Originally Posted by walb0244 View Post
    Nobody is able to take some measurements for me? I would really appreciate it.
    I've got an 06 double axle. Let me know what measurements you need and I will try to get them this weekend. Keep in mind though that my boat is on the trailer so that may limit what I can measure as far as side to side measurements. Email me what you need - alcab63@frontier.com
    Al

    2006 Mobius LSV

  2. #12
    Join Date
    Aug 2013
    Location
    Edmond, OK
    Posts
    33

    Default

    Make sure that you get your tongue weight correct. If you don't the trailer will pull like crap or even be dangerous. I think Boatmate puts 7% of total package weight (Boat and Trailer Combined) on the tongue. You can get it close by centering the tandems on the old axle centerline but, I'm guessing that you'll have to push the axles back a few inches to load the tongue correctly. I recommend tying the two axles together as a unit at the desired spacing with a piece of square tube "heavy tacked welded" to both of them. Put the square tube directly under the current frame rails like a spacer between the axles and frame. Align the centerline of the tandem unit to the old centerline clamp it to the frame and measure the tongue weight. If it is too light or too heavy, un-clamp, adjust, re-clamp, and measure.

    Make sure that the "tandem unit" is square and centered side-to side and make sure that every time you clamp the unit to the frame you make sure the measurement from the front of the tandem unit at the port frame rail to the front of the tongue equals the the same measurement on the starboard side. Doing this makes sure that your trailer tracks straight behind you. Once you get it right, mark your new centerlines and then determine how you want to affix them.

    Good Luck! if you have any design questions, I'll be happy to help.
    William

    2013 Mobius LSV
    "Surf" Swim Platform, Gravity III Ballast Upgrade with 750s in the rear lockers and a Heater
    JL M600/6 Amp, 6 Cabin Speakers (4 kicker & 2 Polk Audio), 2-Samson S7HD Tower Speakers, JL M10IB5 Sub

    My Boat

  3. #13
    Join Date
    Mar 2013
    Location
    Orillia, Ontario< Canada
    Posts
    37

    Default

    Are these torsion axles the short ones that bolt on a frame or full length axles similar to what you would use with a conventional leaf spring set up?

  4. #14
    Join Date
    May 2010
    Location
    Terre Haute, IN
    Posts
    272

    Default

    Full width torsion axles.
    2006 Mobius LSV

  5. #15
    Join Date
    Mar 2013
    Location
    Orillia, Ontario< Canada
    Posts
    37

    Default

    If it were me I would build an angle iron frame to mount the axles to and bolt them to the frame of the trailer to make them adjustable in case you miss the placement of the axles. If you are interested in doing this I can walk you through it. Today I removed my dads boat from the water for the season, his lift is giving him grief, and after towing his 19ft deck boat I remembered how crappy his trailer pulls. It needs more tongue weight, my dad says to me "so that's not normal?" At every bounce it was clunking on the ball.

    Brian

  6. #16
    Join Date
    May 2010
    Location
    Terre Haute, IN
    Posts
    272

    Default

    Well since I'm away. My father-n-law is about to start the project of switching over my trailer to a tandem axle. I think I have all the measurements that I will need to be able to get this done. He is calling boatmate trailers today to get the fenders ordered. Figured this would be a good time to take care of this project before putting the boat away for the winter. He is suppose to send me pictures as the project goes along. I'll put them up on here so you guys can check it out. I'll definately be happy to have this done. Just last week the trailer blew a tire and left my wife and son on the side of the road for awhile. Atleast with tandem axles she could have gotten to a better spot to be able to get the tire changed. I do appreciate all the help that I have gotten from the guys on here. Especially Al.
    2006 Mobius LSV

  7. #17
    Join Date
    Jul 2013
    Location
    North Mississippi
    Posts
    172

    Default

    Definitely keep us updated. Thanks.
    2008 Mobius LSV
    1100#er's in the lockers
    ski locker sac
    IBS
    Johnson reversibles
    3 vent heater (which my family loves)

  8. #18
    Join Date
    May 2010
    Location
    Terre Haute, IN
    Posts
    272

    Default

    IMG_4980.jpgIMG_9754.jpg

    Making some progress. Got the fenders and steps cut off. Got the new fenders, inside carpet pad, and the rubber non-slip pads ordered. Hopefully they ship out pretty soon. Will post updates as soon as I have any.
    2006 Mobius LSV

  9. #19
    Join Date
    May 2010
    Location
    Terre Haute, IN
    Posts
    272

    Default

    Attachment 20845

    Got the axle assembly under the trailer and bolted in place. So if you remove 10 bolts and disconnect the brake line the entire assembly can be removed from the trailer. Currently says that the trailer sets nose heavy without the boat on it but he can move it by himself with one hand so it seems to be balanced. Still have to bleed the brakes and then go and pick the boat up for fender placement. Not sure how much the boat will flex the axles. The fenders were ordered from Boatmateparts.com and should arrive today. Pretty excited. Can't wait to see the end results. Hate that I was gone during the entire deal tho. I have been waiting for awhile for this project and can't wait for it to be done.
    2006 Mobius LSV

  10. #20
    Join Date
    May 2010
    Location
    Terre Haute, IN
    Posts
    272

    Default

    IMG_1364.jpg

    Got the boat back on the trailer. Says it towed great. Needed the boat back on the trailer so could install the fenders. Have sense ran into some problems but hopefully can figure out how to fix the issues and continue on.
    2006 Mobius LSV

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