Information?? High quality chassis partseries products. Made with high strength steel tubing for superior strength and durability. Stable performance, reliable quality and long service life Uniform thickness, no blow holes, slag, cracks, tearing, or incomplete fusion. Measured by specialized inspection tools after welding to make sure assemble hole , bushings insert, and installation sizes are proper. Professional InstallerisHighly Recommended(No Instruction Included) Alignment Highly Recommended After InstallCompatibility Chart?? For Nissan Skyline R32 GTR, GTS, GTST with RB20DET, RB20DE, RB25DET, RB25DE, RB26DTT, RB26DETT For Nissan Skyline R33 GTR, GTS, GTST with RB20DET, RB20DE, RB25DET, RB25DE or RB26DETT For Nissan Skyline R34 GTR, GTS, GTST, GTT, GT4 with RB20DET, RB20DE, RB25DET, RB25DE, RB26DETT ( will not fit 6 speed)Package Content?? 1*Speed – Premium short shifter,W/o Product Instruction??