If you have bought some ramps for a test, please read this section.
Usually you would have only bought 4 ramps.
This is a very small target and it is easy to miss the ramps.
When testing, drive in or out at an angle which you normally would do, or which feels natural to you. This is important. Read on for reasons why.
For garage approaches where you cannot drive in at an angle, then just drive straight in.
In some cases, the situation is such that even with the ramps you will bottom out if you drive straight in and not at an angle.
(for more on this : read notes on bottom of page)
It is tempting to drive in straight in to do the test as you only have 4 ramps. Don’t.
You should instead drive in at an angle which feels natural to you for the test.
Place the ramps down. This will be the approximate positioning for the test.
General rule : Separate the left-right pair by a distance of 1750mm.
One set of wheels, the left hand one in the pic, will arrive at the ramps before the other.
Before the wheels arrive at the ramps, position the ramps precisely.
Next, run the car up until you can see how to position the ramps for the other wheel, the right hand one.
Then reposition the right hand ramps.
Now repeat the process for the back wheels.
Note : When you have the driveway filled left-right with ramps, it is easier to traverse the gutter crossing at an angle which is normally what a driver does anyway.
But when you are testing only with 4 ramps, because the target area is so small, it is tempting to drive straight in/out.
Instead you should maintain your normal angle when testing.
The ramps in most cases are able to reduce the severity of the problem such that you will not bottom out albeit you still need to traverse the crossing at an angle (whereby without the ramps, the car will bottom out even at an angle).