Recommended Spacing for the Tandem-Axle Trailer Hanger Kit APT8
Updated 11/03/2025 | Published 01/23/2025
Products Featured in This Question
Question:
Could you please share some info as to what is the APT8 hanger kit spacing measurements for 25-1/4 eye to eye spring. Thanks
asked by: Roy
Expert Reply:
Hey Roy! To mount 25-1/4" long springs like item # e57SR, you will want to space the Tandem-Axle Trailer Hanger Kit item # APT8 29" - 30" apart. With the equalizer being 7-3/4" and the shackle straps measuring 2-5/8" you'll definitely want to mock this up on the ground before installing it.
I have linked a faq below that has quite a few specific details about setting up a tandem axle suspension system and what to look out for. I recommend taking a look at. If you have any additional questions feel free to reach out in the comment box below.
What kind of trailer are you working on?
Product Page this Question was Asked From
Tandem-Axle Trailer Hanger Kit for Double-Eye Springs - 2-1/2" Front/Rear, 4-1/4" Center
- Trailer Suspension Parts
- Hangers
- Suspension Kits
- Boat Trailer
- Camper
- Car Hauler
- Snowmobile Trailer
- Utility Trailer
- Double Eye Springs
- Tandem Axle
- etrailer
more information >
Featured Help Information
Miscellaneous Media
Continue Researching
- Search Results: trailer bump stop
- Search Results: brophy
- Video: Review of Terran Axle Trailer Suspension Parts - Tandem-Axle Hanger Kit - TX65VJ
- Q&A: Recommended Brake Assemblies for a 10" diameter x 2-1/4" Wide Drum
- Shop: 4-Leaf Double-Eye Spring for 3,500-lb Trailer Axles - 25-1/4" Long - EMCO
- Shop: Suspension Kit for Tandem-Axle Trailers - 1-3/4" Wide Double Eye Springs - 2-1/4" Links
- Shop: Tandem Axle Fenders - 72" Wide x 10" Deep x 20-1/2" Tall - Qty 2
- Search Results: how to measure leaf springs
- Video: Checking Out the 6-Way Molded Connector with Cable
- Q&A: How to Determine Hanger Spacing for Tandem Axle Trailer Suspension with 26 Inch Springs
- Shop: Tandem-Axle Trailer Hanger Kit for Double-Eye Springs - 2-1/2" Front/Rear, 4-1/4" Center
- Shop: Dexter Nev-R-Adjust Electric Trailer Brakes - 10" - Left/Right Hand Assemblies - 3.5K
- Shop: U-Bolt Kit for Mounting 3,500-lb, Round Trailer Axles - 5-1/2" Long U-Bolts
- Shop: Dexter Heavy-Duty Suspension Kit for Tandem-Axle Trailers - 1-3/4" Wide Double Eye Springs
- Q&A: Do All 3500 lb Axles Use a 10 Inch Brake Assembly
- Q&A: Difference Between Trailer Hubs that are Lug Centric and Hub Centric
- Article: How to Tell the Weight Rating of a Trailer Axle
- Article: Double-Eye Trailer Suspension System Review
- Q&A: Determining Correct Replacement Equalizers and Shackle Straps for Older Trailer
- Video: Detailed Breakdown of the Dexter 2-Tang Clevis w/ 2-Position Adjustable Channel
- Q&A: Difference Between 7-Way Wiring Diagram that Uses Red Wire and Purple Wire
- Q&A: Testing Electric Brakes on Trailer without Connecting to Tow Vehicle
- Video: In-Depth Review of the Loadstar ST225/75D15 Bias Trailer Tire with 15" White Wheel
- Video: 4-Leaf Double-Eye Spring for 4,000-lb Trailer Axles Spec Review
- Search Results: trailer safety chains
- Search Results: trailer jack
- Search Results: weld on safety chain loop
- Search Results: hitch pin
- Article: Replacing the Bearing, Races and Seals on a Trailer Hub
- Article: Breakaway Kit Installation for Single and Dual Brake Axle Trailers
on Trailer Suspension Parts
Jerred H.
11/3/2025
Hey Roy, how did your setup go with the APT8 hanger kit and the 25-1/4" springs? Were you able to get the spacing right after mocking it up on the ground? Your update could make it easier for the next person working on a similar trailer.