Originally Posted by SSDiv6 (Post 629504)

Also, if you can, find out what type of Aluminum alloy they are using in the construction of the trailer. 2024 and 7075 Aluminum should never be welded. The heat from the welding process will cause severe cracking.

Originally Posted by SSDiv6 (Post 629503)

Not enough weld penetration and this type of joint needs to be reinforced.
Those welds may be good for a living room table, but not for a high load structural joint.

Find a certified welding inspector and pay them a few bucks for a letter. Then have a lawyer send them a letter and attach the report with a statement that you will be also filing a report with the National Highway Traffic Safety Administration (NHTSA) for the defective welds and request a recall.

I promise you they will either fix it properly or give you a new trailer. They would not like to have the NHTSA pay them a visit, shut them down and fine them.

Originally Posted by terry drinkwater (Post 629514)

what type of aluminum would be acceptable for trailers that will be welded or modified?
Thanks, terry

Originally Posted by SSDiv6 (Post 629524)

High end aluminum trailer frames built from 6061 aluminum are joined together just like an aircraft frame with Huckbolt fasteners and there is minimal welding.

Originally Posted by Markeracer (Post 629547)

Willyracer, please post full company name of CTS, location and website so we are all aware. Thanks