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Tinmy autoparts is Proven Durability and Quality

Tinmy autoparts is Proven Durability and Proven Quality

Proven Durability

Triangle trailer springs have been tested to a fatigue life of more than 160,000 cycles following TTMA recommended practice RP32-92. The results were reported by a major U.S. trailer manufacturer to be “consistently higher that the averages we experienced from previous testing…for comparative purposes…the springs…will perform equal to, or better than, any other springs which have been previously tested.”

Proven Quality

Over 10 years of experience in designing and manufacturing heavy duty springs go into every specification and spring we make. At Triangle Spring, all of our springs are manufactured to one set of specifications, whether it is for OE or the aftermarket, so you can trust Triangle to protect your investment.

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Our manufacturing locations throughout North America assure you of ample supply at the lowest cost. And to ensure consistent quality, all manufacturing and distribution facilities are ISO 9001:2000 Registered – recognized world wide as the significant quality credential. So when you buy Triangle, you not only get OE quality, you also get consistent performance every time.

  • Leaves are properly aligned to one another, both laterally and vertically.\
  • No excessive gaps between leaves and no excessive scaling on the top leaf.
  • Coated with corrosion protection.
  • Leaf Spring leaves must be properly stepped for the most efficient load carrying weight ratios. If the leaves are the same thickness, the steps should be equal.
  • Eye bushing checked for roundness. Elliptical bushing may indicate an improperly formed eye, or excessive reaming of metal bushings during manufacture.
  • Center bolt head acts as a locating dowel during spring installation. For underslung springs, the head should be adjacent to the main leaf. In overslung springs, the head should be located at the center of the spring width.
  • Before the eye is rolled, the end of the spring plate is cut at an angle to provide a smooth fit between the plate end and the spring leaf to help prevent leaves from binding up in the hanger, or shackle, when installed on your vehicle.
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