Jacking the travel trailer..
We bought a new travel trailer last year. I was adjusting the brakes last weekend. I know that you're supposed to jack up a trailer by the frame rails immediately in front of and behind the spring m...
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If you need to lift the whole trailer you should maybe Jack the frame. If you have a flat or are adjusting the brakes there is absolutely no harm in Jacking under the plate where the u-bolts connect the axle to the spring. Done it for years with no problems on utility trailers, TT's, and 5th wheels. The only caution is to never jack on the round part of the axle tube as it can bend.
