Steel fabrication in Gympie. Mobile towbar fitting. REDARC brake controllers. Trailer wiring & repairs. Custom steel fabrications. Hayman Reese, Trailboss & TAG. Family-owned. Hinterland Towbars & Steel Fabrication in Gympie delivers workshop-quality installations at your place. Our fully mobile, qualified and insured team fits towbars, supplies and installs REDARC electronic brake controllers, and completes trailer plugs, Anderson plugs and wiring repairs for cars, utes, vans, 4WDs and caravans. We also provide small custom steel fabrications built to your specs. Using trusted brands and compliant methods, we focus on safe, neat results and honest service. Book a convenient on-site installation or fabrication today.