A 10" x 2 1/4" brake size is common for a 3,500# axle. Any chance you can post a picture of the brakes with the drum off? I can often tell by looking at the brake shoe assembly which brand it is.
OR, look on the axle tube for a axle tag. Sunline used Dexter, Alko and Lippert (LCI) during the 2007 time frame pending camper size. The 3,500 # axles where normally Dexter, but the Que is special and it might have something else. If you have the Sunline manual they would record the axle brand and numbers on a yellow inspection sheet in the manual.
There are 3 ways to add pics.
1. Upload pics to a specific post attaching them at the end of the post.
2. Linking them in from a public viewable web photo hosting service you have.
See here for 1 and 2 https://www.sunlineclub.com/forums/f...html#post86041
3. You can upload pics to the forum in your own personal photo album. Then link them to anywhere in the text of a post. See here on how to create an album. https://www.sunlineclub.com/forums/f...html#post87945
If you still get stuck, let us know. Pic's go a long way in helping show things you are working on.
If you are thinking about replacing the brakes, they sell entire brake plates with shoes, magnets, adjusters , springs etc. as unit. You just bolt the entire break plate on and adjust the shoes to the drum. It is often cheaper to buy the entire brake plate ass'y then just buying replacement brake shoes.
The siding I "believe" is thin filon fiberglass siding bonded to a backer board and glued to the wall studs. The front and rear walls, were a one piece fiberglass molded cap. The Que was special, and what I described is what I think they did based on how they built the normal travel smooth side campers trailers and the fifth wheels with molded end caps in that time era.
You said they used a speedy sleeve, if that is what is called a Brake Buddy, a spring loaded end cap with a grease fitting, they can be bad news on a travel trailer with brakes on it. If that is what you have, I suggest you convert back to a standard bearing end cap or the EZ lub bearing end cap if the axle spindle has a grease fitting in the end of it.
Or are you referring to a shaft seal liner like this from SKF, https://www.skf.com/us/products/indu...-speedi-sleeve
They are use to help correct a worn/rough shaft finish.
Hope this helps
Current Sunlines: 2004 T310SR, 2004 T1950, 2004 T2475, 2007 T2499, 2004 T317SR
Prior Sunlines: 2004 T2499 - Fern Blue
2005 Ford F350 Lariat, 6.8L V10 W/ 4.10 rear axle, CC, Short Bed, SRW. Reese HP trunnion bar hitch W/ HP DC
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