Determining Which Leaf Spring Fits 2015 Grand Design 303RLS

Question:

Is the #e34sr the one I need for this model? My trailer is 250 miles away and was hoping not to go back until I received a replacement. Thanks for any help

asked by: Randy M

Expert Reply:

I would be happy to help you find the correct leaf spring for your 2015 Grand Design 303RLS, but unfortunately we do not have a breakdown of the specific components used on your trailer meaning you will need to measure your existing leaf springs, and you will also need to know the axle rating of your axle.

To determine the axle rating you will need to look at the axle tag located on the center of the axle, as this will have the rating on it. If the tag is missing you can take the GVWR of your trailer and divide it by the number of axles to get a rough idea of the rating.

To measure the spring you will need to raise the axle off the ground so no weight is on the spring, and measure from center of spring eye to center of spring eye.

The 5-Leaf Double-Eye Spring for 6,000-lb Trailer Axles - 25-1/4" Long # e34SR you were looking measures 25-1/4" from center of spring eye to center of spring eye as you can see in the included diagram, and is for 6000lb axles.

If this matches your current leaf spring this would be a great option. If not just email me the information mentioned above and I would be happy to recommend the correct replacement spring for you.

I included a video of the # e34SR for you to take a look at.