Lowering-springs and certing.

[Defcon]

Posted: Wed Oct 19, 2005 9:01 pm Post subject:

--------------------------------------------------------------------------------

http://www.landtransport.govt.nz/public ... ir-manual/

All the criteria you need to meet to avoid certification.

• the springs or shock absorbers are direct replacements, and

• replacement springs fit and maintain contact with un-modified OE seats throughout

full suspension travel, and

• replacement springs are self-retaining in their seats at full extension, without the use

of non-standard devices such as wire-ties, straps, or external spring locators, and

• replacement springs have not been heated or cut, and

• springs and spring seats are not height adjustable (unless OE), and

• replacement shock absorbers fit un-modified OE mountings, and

• suspension maintains sufficient travel for safe operation when fully laden, and

• suspension components maintain sufficient clearance from unmodified bumpstops when fully laden, and

• a minimum of 100 mm ground clearance exists below any part of the vehicle

structure, or any steering, braking, or suspension component1, and

• the normal relationship between front and rear suspension height is not unduly affected.