Humphreys Hitch and Trailer Parts

Serving Pensacola for over 25 Years!
Questions? Call Us +1 (850) 941-4010.

TUBULAR 8,000 LB AXLE SPECIFICATIONS

Suspension:

Leaf Spring Suspension
  • Slipper Eye Version (Only)

(Spring Kits sold separately)

Bolt Pattern Options:

  • 8 on 6 1/2" (9/16" studs standard or optional 5/8")

Brake Options:

Forward Self-Adjusting or Manual.
  • 12 1/4" X 3 3/8" Electric
  • 12 1/4" X 3 3/8" Hydraulic - Uni or Duo-Servo, Parking feature available only with Uni-Servo, Manual Adjust, Duo-Servo RSA
  • Hydraulic Disc with ABS tone ring built in
  • ABS equipped option for hydraulic drum brakes

Spindles:

Uses 25580 Inner and 02475 Outer Bearing
  • Straight
  • 4" Drop

Tubing:

  • 3.5" OD x .250 Light Wall Standard
  • 3.5" OD x .50 Heavy Wall optional for Air-Ride

Lubrication:

  • Grease
  • E-Z Lube®
  • Oil Bath
  • Nev-R-Lube®
Dexter 8000 lbs Drop Axle Specifications
Dexter 8000 lbs Straight Axle Specifications
Overhang Restrictions
SPINDLE
HUB TYPE
MINIMUM
MAXIMUM
Straight 3.5" OD-Lt Wall
Idler/Drum
16"
19"
Straight 3.5" OD-Lt Wall
Disc
17"
19"
4" Drop 3.5" OD-Lt Wall
All
18"
19"
NOTE: Minimums are based on manufacturing tolerances only. Some tire and wheel combinations may create interference.