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SumoSprings Installation On A Ford F-350

The SuperSprings team installs a set of rear SumoSprings airless airbags on a 2011 Ford F-350 at Lance Campers in Lancaster, California.

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Since running “SumoSprings 101” with Paul Gibson last May, we’ve had a number of reader requests for more information on the installation and performance of SumoSprings.  For this story, we follow a SumoSprings installation on a 2011 Ford F-350 at Lance Campers in Lancaster, California.

This SumoSprings installation will be put through the paces at Lance under the load of 2011 Lance Camper models.  In a few months, we will check back with Lance for their SumoSprings evaluation notes.

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The 2011 Ford F-350 used for the installation.

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Left to right: Mike Williams, Gerry Lamberti, Paul Harris

 

On tap for the installation was Gerry Lamberti, CEO of SuperSprings International, and Mark Jutson, SuperSprings Western Regional Manager.  Gerry and Mark arrived at the Lance service building at 9:30am and met with Paul Harris, General Manager of Service and Parts for Lance Campers, and Mike Williams, Service Manager for Lance Campers.  After a quick tour, Gerry, Mark, Paul, and Mike headed to the service area for the SumoSpring installation donning yellow hard hats and safety glasses.

Mark Jutson performed the installation.  The following installation description and photography was provided by SuperSprings.

Mark began the installation shortly after 10:00am by raising the rear of the 2011 Ford F-350 using a truck jack.  Raising the truck allowed the rear axle to hang free.  For safety, a safety jack stand was used during the installation.

Once the rear axle was hanging free, Mark removed the truck’s dual rear wheels to allow for photography during the installation.  It is not necessary to remove the rear wheels but photography would have been impractical with the wheels in place.

With the wheels removed, Mark unbolted and removed the factory jounce bumpers from the underside of the frame on the driver’s side.

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The factory jounce bumpers were placed aside for later re-installation.

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Next Mark detached the emergency brake cable from the spring-pack center bolt for later attachment to the SumoSpring lower mounting block (see photo above).

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With these steps completed, Mark opened the SumoSprings box kit and removed the pre-assembled upper bracket, frame bracket, and SumoSpring.  He then attached the lower mounting block to the bottom of the SumoSpring using a 3/8-16 x 3/4” serrated flange bolt.

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Once he had carefully squared up the lower bracket to the frame with the tallest bracket leg towards the front of the truck, he tightened the lower mounting block and torqued the nuts to 135 foot pounds (see photo above).

Following the attachment of the lower mounting block to the bottom of the SumoSpring, Mark attached the complete SumoSpring assembly to the bottom of the truck rail using the factory jounce bumper and nut.

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Mark used the front hole on the frame bracket and inserted the metal tab into the center hole and torqued the attaching nut to thirty foot pounds (see photo above).

Mark then secured the frame bracket to the side of the chassis frame with a 3/4-16 x 1 3/4” hex bolt, two 3/4” washers, one 3/4” lock washer, and one 3/4” hex nut which were loosely attached to the frame bracket.  He tightened the assembly to 270 foot pounds of torque.

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For the next step, Mark lowered the truck until the lower mounting blocks engaged the factory spring center bolt (see photo above).  Once the factory spring center bolt was engaged, Mark securely tightened the lower mounting block to the factory spring pack with a 12mm washer and 12mm stover nut.

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At this point, Mark attached the emergency brake cable bracket to the tab on the bottom mounting block with a 3/8”-16x 1” bolt, 3/8” washer, and 3/8” stover nut from the SumoSprings kit (see photo above).

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Mark completed the installation by reinstalling the rear wheels and lowering the truck to the ground.  With the SumoSprings installed, Mark also installed a set of Super SwayStops (see photo above and below).

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Gerry added that the last step in a SumoSpring installation or the installation of any SuperSprings product is filling out and mailing in your warranty card.

The whole installation took under an hour.  Mike stated that the installation would have taken about fifteen minutes less if the rear wheels had not been removed for photography.  With the SumoSprings installed, the F350 was about a half-inch taller at the rear wheels.

For more information about SuperSprings, visit their website at www.supersprings.com.

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