Replacement Leaf Spring and Suspension Kit for 1990 Prowler Fifth Wheel
Question:
I plan to replace/upgrade the suspension on my 1990 28’ prowler fifth wheel. Tag GAWR is 4070 per axle Fully loaded axle scale weight is 8000# total Current axles are 3” OD Current springs are 1 3/4”wide 26” eye to eye 4 leaf Current equalizer is 5 3/4” center to center Current shackles are 3 1/2” overall 2 1/4” center to center My plan is to purchase: 4ea SP- 256275 springs 1ea K71-359-00 Suspension kit 2ea APUBR-8 U-Bolt kits Are these good choices for parts? All 4 springs measure 26” under weight and are 30 years old. Is it likely they were 25 1/4” originally and have stretched? Could I replace them with either 25 1/4”or 26” Since the axles are 3” dia My guess is they are 5200# Is there risk in installing 5000# springs in lieu of 4500#? Thanks for the help
asked by: Carl H
Helpful Expert Reply:
Typically leaf springs will stretch around 1/4 of an inch or so when they are worn out but if the springs are 30 years old I could see it easily being 3/4 inch instead. So based on yours currently being 26 inches long and 30 years old your best solution for a leaf spring replacement would be the part # e28SR which is 25-1/4 inches long and has a 5,000 lb axle capacity. This will give you a little more capacity than you'd need which won't hurt anything.
This spring would work great with the suspension kit part # K71-359-00 and the U-bolt kit part # APUBR-8 since you said you have a 3 inch axle diameter.
Products Referenced in This Question
U-Bolt Kit for Mounting 5,200-lb to 7,000-lb, Round Trailer Axles - 7" Long U-Bolts
- Trailer Suspension Parts
- U-Bolt Kits
- Camper
- Car Hauler
- Utility Trailer
- 5200 lbs - 7000 lbs
- Round Axle - 3 Inch
- 1/2 Inch Diameter
- 7 Inch Long
- Dexter
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Dexter Heavy-Duty Suspension Kit for Tandem-Axle Trailers - 1-3/4" Wide Double Eye Springs
- Trailer Suspension Parts
- Suspension Kits
- Boat Trailer
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- Double Eye Springs
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Product Page this Question was Asked From
etrailer Rust-Resistant 4-Leaf Double Eye Spring for 5K Trailer Axles - 25-1/4" Long - Dacromet
- Trailer Leaf Springs
- Double Eye Springs
- 5000 lbs
- 1-3/4 Inch Wide
- 4 Leaf
- 25-1/4 Inch Long
- Dacromet
- etrailer
more information >
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