Recommended Equalizer to Replace a Equa-Flex and Shackle Strap/Wet Bolt Upgrade
Updated 09/02/2025 | Published 06/26/2025
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Question:
I have a 2013 Duchman Infinity 3570 RL fifth wheel camper. I need to replace current equalizer, Equa Flex by Trail Air. 8 Lug wheels. Trailer GVWR 15,500 lbs. Wheelbase is measuring 37. Current shackle length is 3.5. Would like to also update with complete Wet bolt kit. Also interested in MORryde X-Factor brace. For equalizer, I will go with your recommendation. Thanks
asked by: Kenneth D
Expert Reply:
Hey Ken, thanks for the information. To replace your Equa-Flex Cushioned Equalizers LC279688 you'll want the MORryde Shock Absorbing Suspension Equalizers for Tandem Axle Trailers item # MR27ZR. This equalizers are almost the exact same size and will be a solid upgrade.
The MORryde Suspension Upgrade Kit for Tandem Axle Trailers item # MR76ZR is the correct shackle and wet bolt kit. This kit includes 3-1/8" shackle straps, greaseable wet bolts with built-in grease zerks, and bronze bushings. The bronze bushings are more durable and last longer than the plastic bushings found on most factory suspensions.
The MORryde X-Factor Crossmember for Standard Frame Hangers item # MR33WR is exactly what you need for your Dutchmen Infinity. It's compatible with the item # MR27ZR equalizers and supports your suspension by increasing the lateral strength.
There are a couple Equa-Flex equalizers. Will you confirm that the mounting bolt spacing across the center of yours is 7-1/2" between the center of the two holes?
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MORryde Rubber Equalizers for Tandem Axle Trailers - 33" Wheelbase - 8K
- Trailer Suspension Parts
- Equalizer Upgrade Kit
- Boat Trailer
- Camper
- Car Hauler
- Snowmobile Trailer
- Utility Trailer
- Double Eye Springs
- 6-1/2 Inch Long
- Tandem Axle
- MORryde
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Jerred H.
9/2/2025
Hey Ken, did you get a chance to check the mounting bolt spacing on your Equa-Flex equalizers? I'm eager to hear if the suggested upgrades worked well for your Dutchmen Infinity, as it could help others looking to enhance their suspension too.