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Post by garrick on Apr 12, 2021 11:28:44 GMT 12
Hi
My vehicle has rear coil springs with bump stops outside the coil towards the wheels. Airbag Man, and other companies have kits for vehicle which place an inflatable air bag inside the rear coils. This enables achievement of stock ride height whilst towing. If within GVM this achievable without changing travel. But it will cushion more at full compression.
Vtnz says if fitted I will need to go to lvvta for a plate/cert. This will cost $700, if it passes. My rear springs have been updated to carry my every day load of 110kg. Ride height is good until I tow a 10ft trailer loaded with 50 to 100kg of rubbish. With this load it droops at the rear with noticeable effect on braking and steering over road defects.
What can I do to ensure compliance first visit to lvvta?
cheers
garrick
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Post by Chris on Apr 14, 2021 8:20:38 GMT 12
Hi My vehicle has rear coil springs with bump stops outside the coil towards the wheels. Airbag Man, and other companies have kits for vehicle which place an inflatable air bag inside the rear coils. This enables achievement of stock ride height whilst towing. If within GVM this achievable without changing travel. But it will cushion more at full compression. Vtnz says if fitted I will need to go to lvvta for a plate/cert. This will cost $700, if it passes. My rear springs have been updated to carry my every day load of 110kg. Ride height is good until I tow a 10ft trailer loaded with 50 to 100kg of rubbish. With this load it droops at the rear with noticeable effect on braking and steering over road defects. What can I do to ensure compliance first visit to lvvta? cheers garrick Hi Garrick Yes airbag assist always requires cert. But I cannot provide a hard and fast guide to ensure compliance, but some helpful advice to get you on your way. - Compile a COMPLETE list of ALL modifications on the vehicle, not just what you think the certifier wants to know.
If the certifier misses a modification and it is not covered, this will cause aggravation for you in the long run because when a modification is missing off a cert plate it will result in a WoF failure.
ALL modifications include modifications so obvious you think they wouldn't matter, such as a wheels, flares, bullbars, sidesteps, tinting, gearbox swap etc. Trust me when I say that more detail is better than less detail and this is to help you. - Take a copy of a WoF checksheet that is less than 14 days old and it pays to remedy any of the issues on the WoF sheet.
- Take a copy of a wheel alignment report for your certifier if you have any steering or suspension modifications.
- Take copies of invoices for any parts you have fitted so the certifier can check the part number and assess the origin of the parts.
- Take copies of invoices for any parts you have had professionally modified (driveshaft, handbrake cables, steering components etc)
- Make sure the brakes are in tip top condition, if a brake test is required, it is fair to say that they are pretty punishing and mediocre brakes will very likely fail the test.
- Make sure all critical function fasteners have at least 2 threads past the end of the nut and have a positive fastener fitted (spring washers or nylocs) but do not fit nylocs to hot components (ie brakes and exhaust) - use a spring washer or a variant of. Critical function means if it falls off and messes up your day, then it is critical.
Cheers
Chris
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