UFP 3.7 K Vault Torsion Arm with DB-35 Disc Brake Assembly LEFT Side Trailer RV (43039LU)

  One UFP 3.7 Pound Rated Vault Torsion Arm with DB-35 Disc Brake Assembly LEFT Side  Part Number: 43039LU This UFP Torsion Axle Arm Assembly (Left Hand Side) has a 5 Lug DB-35 10" disc brake assembly with rotor and caliper installed.This assembly uses the The VAULT “Hybrid Lubrication system” which gives you the ultimate wheel bearing lubrication and protection.  No inspection, no maintenance and no service required. The 5/8" torsion arm mounting bolt, nut, and washer are included. Spline Measurements: 59 Ridges (peaks) Rated Capacity: 3700 Lbs. Spindle Size: 1-3/8" x 1-1/16" tapered Diameter: 9-3/4" Bolt circle: 5 on 4-1/2" Inner Bearing: 1-3/8" (L68149) Inner Race: L68110 (Included) Outer Bearing: 1-1/16" (L44649) Outer Race: L44610 (Included) Seal: 1.68" ID x 2.56" OD Brand: UFP Trailer Parts  Replacement For: 250-510140 FREE SHIPPING