# Dump Truck Repair for Eastvale, California > Body floor, hoist mounting, hinge and tailgate repair for dump trucks working Eastvale construction and grading sites. Source: https://ocrv.info/vehicles/commercial-trucks/dump-truck A dump truck carries a hydraulically raised body on a subframe with hinge pins at the rear and a hoist mounted forward. Repair work covers body floor and sidewall abrasion, cracked hoist and subframe mounting, hinge pin and bushing rebuilding, tailgate latch mechanisms, cab shield repair, liner installation and structural welding. ## Pricing Typical range $1,500 to $50,000+, 10 to 250 hours. Dump bodies wear out from the inside. Every load of aggregate, asphalt or demolition debris slides the length of the floor on the way out, and that abrasion thins the plate steel from the front bulkhead back to the tailgate. Thinning is uneven, concentrating where the load first lands and where it turns as it exits, and the first sign is usually a soft spot that dents under a load it used to carry. The second wear pattern is at the pivots. Rear hinge pins carry the whole body weight every time it is raised, and once the bushings wear the body sits crooked, the tailgate stops sealing and the hoist works at an angle it was not designed for. Cracking then appears at the hoist mounting and at the subframe, which is the point where a maintenance item becomes a structural repair. Grading, hauling and construction operations working around Eastvale run these hard on I-15 and local haul routes. The truck comes roughly twenty miles to the Yorba Linda facility, where body plate replacement, hoist mount repair, hinge rebuilding, tailgate work and refinishing all happen in shop. Scope is body, paint, structural and equipment installation. Engine and drivetrain service is not performed. ## Common damage - Thinned floor plate in the wear lane - Cracked hoist mounting brackets - Worn hinge pins and oval hinge bores - Cracked sidewall top rails - Binding tailgate latch linkage - Bent cab shield and mounting brackets - Corrosion at the floor to wall joint ## Floors, sidewalls and abrasion Measuring a dump body floor is the first step, because appearance is a poor guide. Plate that looks serviceable can be well under its original thickness in the wear lane. Thickness readings taken on a grid across the floor show where material has gone and whether the loss is general or concentrated. That map determines whether the answer is a partial floor replacement, a full floor, or a liner installed over sound plate to stop further loss. Sidewalls fail differently. They dent from loading, they crack at the top rail where the body has flexed with an unbalanced load, and they corrode at the bottom where material sits against the floor to wall joint. Repair straightens or replaces panels, rebuilds the top rail where it has cracked, and re establishes the floor to wall weld so the joint is continuous. Abrasion resistant liner material can be added in the wear zones during the same visit. - Floor thickness measured on a grid, not judged visually - Partial or full floor replacement based on the readings - Top rail cracking repaired where the body flexed - Floor to wall joint welds rebuilt continuous - Abrasion resistant liner fitted in the wear lanes ## Hoist mounting, subframe and hinge pins The hoist applies its entire lifting force through two mounting points, one on the subframe and one on the body. Those mounts crack when the body is raised on uneven ground, when a load sticks and then releases suddenly, or simply from cycle count. Repair is not a matter of welding over the crack. The area gets cleaned, the crack is drilled at the tip, the weld is ground out and rebuilt with proper preparation, and a doubler is designed in where the original section was undersized. Rear hinge pins and bushings carry the body weight through every cycle. Worn bushings let the body shift laterally as it rises, which puts a twisting load into the hoist and misaligns the tailgate. Rebuilding replaces pins and bushings to correct fit, repairs the hinge ear where the bore has gone oval, and checks that both sides are on a common axis. A body that pivots true stops damaging everything downstream of it. ## Tailgates, cab shields and finish Tailgate hardware takes impact from every load and it is usually the first thing an operator complains about. Latch mechanisms bind, air or cable release linkage seizes, and the upper pivot pins wear until the gate hangs unevenly and spills material. Repair rebuilds pivot points, replaces latch components, straightens the gate frame where it has bent, and adjusts the linkage so the gate releases cleanly and seals along the full perimeter when closed. The cab shield protects the cab from material coming over the front bulkhead and it takes strikes that would otherwise hit the roof. Bent shields and cracked mounting brackets are routine. Repair straightens or replaces the shield and rebuilds the mounting into sound structure. Refinishing follows, with preparation and coating selected for a vehicle that will be abraded and washed constantly rather than parked in a showroom. Edges and weld seams get coated first, because that is where a finish fails on an abrasion body. - Tailgate pivot pins and latch components rebuilt - Release linkage freed and adjusted for clean operation - Gate frame straightened for full perimeter contact - Cab shield mounting rebuilt into sound structure - Coating selected for abrasion and frequent washing ## Frequently asked questions ### How thin is too thin on a dump body floor? That depends on the original plate specification and the material being hauled, which is why the answer comes from measurement rather than a rule of thumb. Thickness readings across a grid show both the amount lost and the pattern. Where loss is concentrated in a lane, a partial replacement plus a liner is often the efficient answer. Where it is general, a full floor makes more sense. ### My body sits crooked when raised. What is causing that? Worn hinge bushings or an oval hinge bore on one side, most commonly. As the body rises it shifts toward the worn side, which twists the hoist and misaligns the tailgate. Continuing to operate that way cracks hoist mounts. Repair replaces pins and bushings to correct fit, repairs the hinge ears, and confirms both sides sit on a common axis before the body is cycled. ### Can cracked hoist mounts be welded and put back in service? They can be repaired properly, which is more than welding over the crack. The area is cleaned, the crack tip is drilled to stop propagation, the weld is ground out and rebuilt with correct preparation and filler, and reinforcement is added where the original section was marginal for the duty. A crack that keeps returning at the same location is telling you the section needs redesign, not another bead. ### Do you install liners and make body modifications? Yes. Abrasion resistant liner installation, welding and metal fabrication, custom modification and equipment mounting are all in scope. Modifications get designed around the load path and the hoist geometry rather than bolted on, because added weight in the wrong place changes how the body behaves when raised. Engine and drivetrain service is not performed at this facility. --- OCRV Center. 23281 La Palma Ave, Yorba Linda, CA 92887. (949) 799-3387. info@ocrvcenter.com. Serving Eastvale, California in Riverside County, about 20 miles from the shop. All work is performed in shop at the Yorba Linda facility. No mobile, roadside or on-site service is offered. Scope is body, paint, structural, fiberglass, interior and vehicle systems work. Engine rebuilds, transmission rebuilds, drivetrain work, DOT inspections and emission testing are not performed.