Ironwerx IW900 Main Options:
-5 Cabs (Day, Coffin, Flattop, Aerodyne, Studio)
-20 Chassis Options (6×4, 8×6, Lifted, 6×6, 8×8, lift axle)
-2 Steer Axle Widths (Standard, Wide)
-2 Interior/Dash Styles (Modern, Classic)
-8 Wheel Styles (Standard and Wide Variant)
-Open Definitions For Editing or Adding

Ironwerx IW900 Features:
-Custom Cellphone Accessories & GPS
-Custom CB Radio (physics cord)
-Interior Lighting
-Mood Lights
-Cowl Hoods
-Removable Bunk Fairings
-Custom Cone & Element Filters
-Changeable Front Fenders
-W9 & ‘A’ Model Headlights (Multiple Styles)
-Gauge Face Options
-Full Animated Dash
-Multiple Dash Light Colors
-Fully Customizable Interior
-Custom Side Pipes
-Custom Rear Pipes
-Custom Visors
-Multiple Grill Options
-Custom Body Rivets
-Custom Badges and Logos
-Custom Seats
-Custom Shifters
-Custom Steering Wheels
-Bunk Accessories
-Shaved Handles and Door Window Options
-Custom Skirts and Bumpers
-Custom Rear Fenders
-Custom Rear Toolboxes
-And much, much more.

Changelog v1.31
-Adds the missing brake and shifter models
-Reimported models and materials
-Updated interior animations
-Adapted for 1.54

Credits:

IronwerxMD