A couple of years ago I started selling the 12" high RLL-78-2 ramp in response to requests for a higher ramp. It is basically an oversized version of the 10" high 67" RR-XT-2 ramp. Unfortunately, that means the ramp is too steep for a GT-R. Some customers use the RR-EX-14 extender ramps (intended for the 67" ramps) with the 78" ramp.
With a 12" high ramp, it's more difficult to get a floor jack under the rear of the car when the front tires are on the ramp platforms. In some cases, with long wheelbase vehicles, it's possible to use Roll-ups or Trak-Jax under the rear tires to make more room for a floor jack. With short wheelbase cars, there's usually not enough room to use Roll-ups with anything longer than an 80" ramp.
Other considerations with 12" high ramps and low ground clearance cars are the possibility of scraping the tail pipes when driving up the ramps or ripping off the front bumper when backing onto the ramps.
I will be featuring a new ramp model at the 2018 Spring Carlisle Car Show next month that addresses some of these issues. It will not be an inexpensive solution and some forum members will probably scoff at the design and price. This RLL-116-3 ramp is a three section ramp with three progressively steeper inclines. The center section has tapered ends to make it easier to remove once the car is on the ramps. An optional extension will be offered for longer wheelbase cars. All the sections are less than 48" long and the ramp can be transported with a mid-size SUV or short-bed pickup. This ramp was developed to meet the requirements of customers wanting to inspect very low ground clearance cars in the field.
This ramp will only be available in a heavy duty version (2500# per tire capacity). It will feature a double textured bottom surface and will include a pair of Race Ramps wheel chocks.
RLL-116-3-14HD+D.jpeg 25.62KB 29 downloads