2- Trailer Axle Spindle For 1 Inch ID Bearings fits 2000# Dexter ALKO Square BT8 (SP-150BT8-SQ-KITX2) Nissan Converts 5th wheel base rails

Converts 5th wheel base rails to a 2-5/16" gooseneck ball mount

Use this family guide to compare related 945475 hub/drum

confirm whether your existing foot or caster will fit your setup

The ID of the mount is just over 2 1/16" to slip over a standard 2" jack

Confirm drum diameter

2- Trailer Axle Spindle For 1 Inch ID Bearings fits 2000# Dexter ALKO Square BT8 (SP-150BT8-SQ-KITX2) Nissan Converts 5th wheel base railsPair of 2000 lb Square Trailer Spindles Includes Nut, Washer & Cotter Pin Part Number: SP 150BT8 SQ KITX2 This listing is for a pair (2) of 2,000 lb square trailer spindles used on light duty axles including utility, cargo, marine, and small RV applications. Each spindle features a 1. 50" square weld end and precision ground 1" bearing surfaces to accept standard L44643 bearings and the matching T 23970 (1. 249" ID) grease seal. Hardware is included