ATU45108 – Tubing – Tube Dia 4.550″ – Tube Length 70″ – Tube Wall 108

The ATU45108 driveshaft tube is the raw tube stock for custom or replacement driveshaft fabrication. It's aluminum alloy — 4.550"" OD x 108" wall — sold per foot and cut to your specification. The ATU45108 driveshaft tube is the starting material for a build; the yokes, u-joints, and balance work come after you've verified this tube diameter is correct for your application's torque load and critical speed.

Atu45108 Driveshaft Tube — Aluminum Specifications

The ATU45108 driveshaft tube specs: 4.550"" OD x 108" wall. High Performance tube. Aluminum alloy — lightweight, corrosion resistant, requires proper MIG/TIG procedure. Significantly reduces rotating mass, relevant on high-RPM or fuel-sensitive builds. Wall thickness determines torque capacity and critical speed rating. Thicker wall handles more torque but adds rotating weight — rotating weight matters more for RPM limits than static weight does, because it affects the critical speed calculation directly.

Before cutting the ATU45108 driveshaft tube to length, confirm the butt diameter of your weld yoke matches the tube OD. The yoke butt slides into or over the tube end — a loose fit here produces a concentric weld joint only if you're lucky. Measure both, cut clean, tack before full weld.

Key Features

• Aluminum alloy — lightweight, corrosion resistant
• Tube OD: 4.550"" — match to weld yoke butt diameter
• Wall: 108" — determines torque capacity and critical speed
• Sold per foot — order exact length, cut to your specification
• Note: High Performance tube

Specifications

• SKU: ATU45108
• Brand: UDS
• Material: Aluminum DOM
• Tube OD: 4.550""
• Wall Thickness: 108"
• Sold per foot
• Notes: High Performance tube