Differences in the Redline Single-Axle Trailer Hanger Kits, # APS1, #APS2, and # APS3
Question:
What would be the different applications for the APS1, APS2 and the APS3
asked by: Mitch L
Expert Reply:
The APS1, APS2, and APS3 are all suspension kits for single-axle trailers with 1-3/4-inch double-eye springs. They are designed for use on trailers with single, 2,000-lb to 7,000-lb axles.
The difference in the kits are in the rear hangers and the shackle straps.
The Redline Single-Axle Trailer Hanger Kit, part # APS1, uses the Redline Rear Hanger, part # 30-20, which uses a steel bushing and is .91 inches tall. The shackle straps are the Shackle Strap, part # TRSL313, which are 3-1/8 inches long.
The Redline Single-Axle Trailer Hanger Kit, part # APS2, uses the Redline Rear Hanger, part # 93003-3X, which is a rear hanger with no bushing and is 1-1/2 inches tall. It uses the Shackle Strap, part # 115052, which is 2-5/8 inches long.
The Redline Single-Axle Trailer Hanger Kit, part # APS3, uses the Redline Rear Hanger, part # 93003-3X, which is a rear hanger with no bushing and is 1-1/2 inches tall, but it uses the Shackle Strap, part # TRSL313, which are 3-1/8 inches long.
I would recommend when ordering a single-axle trailer kit to measure the height of the front and rear hangers and the length of your shackle straps to determine which kit you will need. If you are replacing the leaf springs you will also want to measure the length of your springs.
I am including a link to a FAQ page on trailer suspensions.

Products Referenced in This Question
Replacement Shackle Strap - 2-5/8" Long
- Trailer Suspension Parts
- Shackle Links
- Boat Trailer
- Camper
- Car Hauler
- Snowmobile Trailer
- Utility Trailer
- 2-5/8 Inch Long
- etrailer
more information >
Rear Hanger with Bushing for Single Axle Trailer Suspensions with 1-3/4" Double Eye Springs
- Trailer Suspension Parts
- Hangers
- Boat Trailer
- Camper
- Car Hauler
- Snowmobile Trailer
- Utility Trailer
- Double Eye Springs
- 9/16 Inch Diameter
- 2-1/8 Inch Tall
- Single Axle
- Dexter
more information >
Rear Hanger for Double-Eye Springs - 1-9/32" Tall - 9/16" Bolt Hole - Single Axle Only
- Trailer Suspension Parts
- Hangers
- Boat Trailer
- Camper
- Car Hauler
- Snowmobile Trailer
- Utility Trailer
- Double Eye Springs
- 9/16 Inch Diameter
- 1-1/4 Inch Tall
- Single Axle
- etrailer
more information >
Single-Axle Trailer Hanger Kit for Double-Eye Springs - 1-1/2" Front, 1-1/4" Rear
- Trailer Suspension Parts
- Hangers
- Suspension Kits
- Boat Trailer
- Camper
- Car Hauler
- Snowmobile Trailer
- Utility Trailer
- Double Eye Springs
- Single Axle
- etrailer
more information >
Single-Axle Trailer Hanger Kit for Double-Eye Springs - 1-1/2" Front, 1-1/4" Rear
- Trailer Suspension Parts
- Hangers
- Suspension Kits
- Boat Trailer
- Camper
- Car Hauler
- Snowmobile Trailer
- Utility Trailer
- Double Eye Springs
- Single Axle
- etrailer
more information >
- Trailer Suspension Parts
- Shackle Links
- Camper
- Car Hauler
- Utility Trailer
- 3-1/8 Inch Long
- etrailer
more information >
Product Page this Question was Asked From
Single-Axle Trailer Hanger Kit for Double-Eye Springs - 1-1/2" Front, 7/8" Rear
- Trailer Suspension Parts
- Hangers
- Suspension Kits
- Boat Trailer
- Camper
- Car Hauler
- Snowmobile Trailer
- Utility Trailer
- Double Eye Springs
- Single Axle
- Redline
more information >
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