Availability of SumoSprings for 2007 Tiffin Allegro Bay 35TSB on Freightliner FRED Chassis
Updated 09/14/2025 | Published 08/23/2025
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Question:
2007 Tiffin Allegro Bay 35TSB diesel FRED Freightliner Chassis Part number for front SUMO springs? Part number for koni shocks? Part number for safeT steer?
asked by: Thomas C
Expert Reply:
Hi Thomas; the SumoSprings Solo Custom Helper Springs - Front Axle # SSF-501-40 and Rear Axle # SSR-502-54 are the correct fit for the FRED Chassis. The Safe T Plus steering stabilizer and Koni shocks are not something that we carry but it does look like they are also available for the Freightliner FRED. You will have to get them directly from Safe T Plus/Koni.
Any big plans with your motorhome once you get all of your upgrades installed?
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Product Page this Question was Asked From
SumoSprings Solo Custom Helper Springs - Front Axle
- Vehicle Suspension
- Towing/Load Leveling
- Bump Stops
- Suspension Only
- Light Duty
- Front Axle Suspension Enhancement
- SuperSprings Intl
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Robin H.
9/12/2025
Hey Thomas, did you manage to get the SumoSprings installed on your motorhome? I'd love to hear how it all turned out, as it could give others confidence when upgrading their setups.