LS Engine Mounts and Frame Bracket Kit for 1988-1998 GM Trucks
Fitting an LS motor into a late model GM four wheel drive truck often stalls when engine placement disrupts driveline angles but the 1988-1998 GM Truck 4WD LS Engine Mounts and Frame Bracket Kit holds the powerplant at factory measured points to eliminate fitment guesswork. Each bracket and mount is formed from American steel and aligns to original frame rails with pre drilled holes so installers can use the supplied hardware and instructions to complete mounting without trimming or shimming. By securing the engine at the correct height and setback this kit reduces vibration in the cab, preserves universal joint life and maintains consistent torque delivery on both highways and rugged terrain.
Factory Geometry for Accurate Driveline Alignment
The mounting brackets and frame plates in this kit are machined to the exact measurements used in factory GM trucks, ensuring the LS engine sits at the correct height and setback. By aligning the crank centerline to the original frame rails, driveline angles remain in the ideal range through full suspension travel. Installers benefit from holes drilled to specification, which eliminates trimming or shimming and delivers consistent torque transfer without guesswork. This precise placement also reduces stress on universal joints and prevents premature wear during highway cruising or off road excursions.
Premium American Steel Construction and Weld Integrity
Each component is formed from heavy gauge American steel known for its strength and resilience under load. Expert TIG welding fuses the mounts and brackets into a single rigid assembly, creating seamless joints that resist flex and fatigue over time. This robust fabrication resists cracking even when the chassis encounters rocks, ruts or sudden impacts. Builders can trust that the assembly will maintain its structural integrity without reinforcement or frequent torque checks, supporting reliable power delivery on any terrain.
Complete Installation Kit Streamlining Your Build
Rather than sourcing parts individually, this kit includes every mount, bracket, bolt, spacer and a comprehensive instruction guide. Detailed diagrams label each piece and relate it directly to frame locations, helping technicians assemble the system correctly on the first try. With all hardware organized and clearly described, installation time is cut dramatically and the risk of error is minimized. Once the engine is in place, builders can move straight to fuel plumbing and wiring without delays.
Optimized Torque Transfer and Reduced Vibration
By rigidly securing the LS engine in its designated factory position, the kit minimizes unwanted movement under load, which sharpens throttle response and yields a more linear power curve. Reduced engine rock decreases vibration feedback through the chassis and into the cab, enhancing ride comfort on long highway runs and rugged trail rides alike. Maintaining consistent geometry also ensures that torque delivery remains even across all four wheels, preserving 4WD stability when accelerating out of corners or powering through rough ground.
Engineered for precise fit and lasting quality this kit delivers consistent driveline alignment under all conditions. For other parts for your truck see our 1988-1998 4WD GM Truck LS Swap Kit.