Go Back   TeamTalk > Maintenance Tips, How-tos and Refurbishing Topics > Trailers

Reply
 
Thread Tools Display Modes
  #1  
Old 05-06-2013, 08:42 AM
jschildm jschildm is online now
TT Enthusiast
 
Join Date: Aug 2010
Boat: 1998 ProStar 205
Location: Midwest
Posts: 247
Axle U-Bolts

I have 1998 205 and want to put 15" rims on it. To do so I decided to lift the trailer a bit. Its in storage right now and not overly convenient to get to. I was down there this weekend and measured the length of the u-bolts but forgot to get the width . Has anyone done this or have the boat/trailer handy to get me the u-bolt dimensions? Thanks.
Reply With Quote
  #2  
Old 05-06-2013, 11:14 AM
chunter's Avatar
chunter chunter is offline
TT Regular
 
Join Date: Jul 2010
Boat: 1999 Prostar 205
Location: southern CA
Posts: 131
you and i are on the same page right now, i just got done installing in new springs and the thing is to low now so i am puting in 1" blocks to lift it. my axles are square and the u bolts that i am looking at are http://www.grainger.com/Grainger/U-B...Y42?Pid=search
Reply With Quote
  #3  
Old 05-06-2013, 04:33 PM
jschildm jschildm is online now
TT Enthusiast
 
Join Date: Aug 2010
Boat: 1998 ProStar 205
Location: Midwest
Posts: 247
Are the u-bolts 3/8? I thought mine looked like 7/16.
Reply With Quote
  #4  
Old 05-06-2013, 05:22 PM
chunter's Avatar
chunter chunter is offline
TT Regular
 
Join Date: Jul 2010
Boat: 1999 Prostar 205
Location: southern CA
Posts: 131
now that you said that i think you are right, i will check later.
Reply With Quote
  #5  
Old 05-08-2013, 09:49 PM
jschildm jschildm is online now
TT Enthusiast
 
Join Date: Aug 2010
Boat: 1998 ProStar 205
Location: Midwest
Posts: 247
Have you had a chance to investigate the u-bolts anymore? I finished up my blocks today, so now I just need to figure out my u-bolts. Might have to go take a closer look at the boat this weekend if no one has info.
Reply With Quote
  #6  
Old 05-09-2013, 09:18 AM
jschildm jschildm is online now
TT Enthusiast
 
Join Date: Aug 2010
Boat: 1998 ProStar 205
Location: Midwest
Posts: 247
Just to show what I am working on I have attached some pictures of the blocks I am using. Started with 1-3/4" x 2" blocks that are 2"-3" long. Drilled a pilot hole all the way through in the center. Then drilled it out to 5/16 (the drill size for tapping a 3/8 -16 hole. Then drilled the other side out to 11/16 deep enough that the head of a bolt would fit in it (centering bolt in spring has a 9/16" head). I tapped the small hole to 3/8 -16. Now I should be able to put a bolt in the threaded portion, and have the centering bolt in the springs fit on the top, and be good to go. I will probably weld the block to the trailer also. Now I just need to get some u-bolts that are a couple inches longer.
Attached Images
   
Reply With Quote
  #7  
Old 05-09-2013, 10:22 AM
chunter's Avatar
chunter chunter is offline
TT Regular
 
Join Date: Jul 2010
Boat: 1999 Prostar 205
Location: southern CA
Posts: 131
i am really confused by your block design, where are you welding them to. i understand making blocks that go between the spring and the axle but not the bolting and welding part. as for the u bolts i had a local shop make them for me. they are 9/16 thread 2" wide by 7.5" tall. when i get them today i will take some pictures and post them along with the price if you want i can give you the contact so you can order also. as for the top plates i am going to waterjet some new ones out of 3/8 plate.
Reply With Quote
  #8  
Old 05-09-2013, 11:02 AM
Ski-me's Avatar
Ski-me Ski-me is offline
MC Devotee
 
Join Date: Mar 2007
Boat: Mastercraft, Prostar 205, 1994, LT1
Location: Rocky Mountains....Colorado Springs
Posts: 2,451
Seems like a pretty huge block you have there.

Are you planning to bolt it to the spring pack or just a block underneath? For my Blazer, there is a "1-Inch zero rate" spring which acts like another leaf in the spring pack but lifts it another inch (and bolts to the existing spring pack.) It also has a centering pin. These are 2.5" wide though and I don't know how wide our trailer leafs are.

http://www.offroaddesign.com/catalog/Zero%20Rates.htm
Attached Images
 
__________________
- Jeff

1994 205, LT1
Reply With Quote
  #9  
Old 05-09-2013, 11:30 AM
jschildm jschildm is online now
TT Enthusiast
 
Join Date: Aug 2010
Boat: 1998 ProStar 205
Location: Midwest
Posts: 247
Good to know on the u-bolts. I have been searching around and asking if anyone knew of a local shop that could custom make some u-bolts for me, but I haven't had any luck as of yet. I think I should be able to get bolts and plates online somewhere if need be.

As for the blocks, the 3/8 tapped hole will get a bolt threaded into it to replicate the head of the centering bolt on the springs. It doesn't actually bolt anything together, just keeps the block located where it should be. The actual head of the centering bolt will then rest in the 11/16 hole drilled on the top side. This should keep everything lined up as it was before. Welding the block to the trailer would just be added strength, since lifting the trailer will add more torque to that joint.
Reply With Quote
  #10  
Old 05-09-2013, 11:38 AM
jschildm jschildm is online now
TT Enthusiast
 
Join Date: Aug 2010
Boat: 1998 ProStar 205
Location: Midwest
Posts: 247
The blocks will raise it 2" and are 1-3/4" wide to match the leafs. They might be longer than they need to be, but I don't know that it matters. They will not be bolted directly to the leaf springs.

In hind sight, it probably wouldn't have cost much (if any) more to just measure the free dimensions of the springs and get some with higher arch. At this point its a matter of pride and making this work safely.
Reply With Quote
Reply

Thread Tools
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


All times are GMT -4. The time now is 08:55 AM.