If you are having difficulty obtaining a level platform then you can apply devices such as tongue jacks, stack jacks, or more specifically Lynx Levelers provided by Tri-Lynx Corporation. Lynx Levelers are interlocking blocks that help to elevate and level your camper/RV. Applications include being placed under single tires, tandem axles, and dual wheels and they can even assist the aforementioned tongue and stack jacks as well as hydraulic or hand jacks, also by simply being placed just under the device before use. Provide below is Tri-Lynx's leveling selection.

 

Lynx Levelers

Offered by Try-Lynx, Lynx Levelers are not only safe but are a wonderful inexpensive leveling alternative. They can be configured in a variety of ways to accommodate any leveling application by interlocking with one another to stack into a pyramid shape. Once stacked you can simply drive on to them resulting in a level platform such as your RV. They can be applied under dual wheels, single tires, tandem axles, tongue jacks, hand or hydraulic jacks, and much more! 10-packs come supplied with a storage bag that is made of a durable nylon material and only requires 1 cu. ft. of storage space. If you need more the 4-pack provides a simple solution if you need just a few additional blocks to reach leveling perfection holding up to 40,000 lbs.
    Available Options:
Lynx Levelers
 
Lynx Leveler Leveling Block Cap

Lynx Leveler Leveling Block Cap 4/pk

Lynx Caps are a unique interlocking system. They are designed to not increase stacking height while still providing a fit that is snug and secure with your original Lynx Levelers. They too include a durable nylon bag for storage and can level up to 40,000 lbs.
 

Lynx Levelers Wheel Stop 'N Chock

Lynx Levelers Wheel Stop 'N Chock

RV leveling made easy, Stop-N-Chocks assist in parking upon lynx levelers allowing you to perfectly park atop the stacks every time ensuring your RV is safe, secure, but most importantly level. They are convenient, easy to use, easy to clean, are strong, and have a durability to match! 2 come to a box.