Replacement Shackle Straps for a Triple Axle 2016 Forest River XLR Nitro Thunderbolt 395 AMP
Updated 12/22/2025 | Published 10/23/2024 >
Products Featured in This Question
Question:
I have a 2016 Forest River XLR Nitro Thunderbolt 395 AMP. Triple Axle. I need advice on the best least expensive way to change the shackles on the axles and springs. The stock ones are rusted in one position. Also if measurements are needed. Let me know what those are. Thanks.
asked by: Bryan S
Expert Reply:
Hey Bryan, thanks for reaching out!
In order to get you some replacement shackles I'll need you to measure the length of your shackles, which is center eye to center eye (see attached photo).
The most common lengths are 1-1/4" and 3-1/8" so for just replacement shackle straps you'd need # TRSL225 or # TRSL313 respectively. These come in a quantity of 1 so you'll need to adjust the quantity to match how many you're planning on replacing.
Product Page this Question was Asked From
- Trailer Suspension Parts
- Shackle Links
- Camper
- Car Hauler
- Utility Trailer
- 2-1/4 Inch Long
- TruRyde
more information >
Continue Researching
- Video: Ultimate Overview of the MORryde Suspension Upgrade Kit for Triple Axle Trailers
- Video: Review of MORryde Trailer Leaf Spring Suspension - Triple Axle Rubber Equalizers - MR59ZR
- Shop: MORryde Suspension Upgrade Kit for Triple Axle Trailers w Correct Track - 2-1/4" Shackle Straps
- Shop: MORryde Suspension Upgrade Kit for Triple Axle Trailers - 2-1/4" Long Shackle Straps
- Shop: MORryde Shock Absorbing Suspension Equalizers for Triple Axle Trailers w/ 33" Wheelbase - 8K
- Shop: MORryde Suspension Upgrade Kit for Triple Axle Trailers - 3-1/8" Long Shackle Straps
- Shop: Lippert 1116 5th Wheel Pin Box - 19,000 lbs
- Q&A: How to Pick Out Correct Shackle Length for Trailer Suspension
- Q&A: Recommended Coupler Lock for a Dexter DX7.5L A-60 Brake Actuator
- Article: How to Raise Your Travel Trailer Height
- Q&A: What are the Dimensions of a #99 Spindle
- Q&A: Replacement Leaf Springs for 2021 Keystone Raptor Toy Hauler
- Q&A: Availability of Trailer Hitch for 2024 Land Rover Range Rover Sport
- Article: How to Accurately Measure Trailer Leaf Springs
- Q&A: Replacement Leaf Spring for 7k Rated Trailer Axle that is 25-1/4 inch Long
- Q&A: How to Choose Correct Replacement Leaf Springs and Equalizers for a 2021 Coachmen 259FKDS
- Article: Trailer Maintenance Schedule
- Article: 5 Tell-Tale Signs It’s Time to Replace Your Trailer’s Leaf Springs
- Article: Best Bike Racks for Electric Bikes
- Article: Testing Trailer Brake Magnets for Proper Function
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)



Kate F.
12/22/2025
Hey Bryan, were you able to get those shackle measurements for your XLR Nitro Thunderbolt? Once you have them, I can help confirm which size strap will fit best. Let me know what you find so we can narrow it down.