The oil pump alignment tool compatible with for Gen V Lt4 Lt5 L83 L86 L87 engines,oil pump alignment is critical when reinstalling oil pump. The oil pump alignment tool is made of billet 6061aluminium alloy material ,aluminum oil pump installation guides to aid in aligning oil pump onto engine properly. The pickup tube is fastened to the oil pump by a single bolt and leaves the other bolt hole unused,Used when temporarily removing an oil pump (such as doing a cam swap) Install the alignment tools above the existing oil pump, then loosely tighten the tool bolts, slide the tools against the oil pump, then tighten the bolts to keep this position,next after doing your camshaft swap, re-install the oil pump, loosely tighten the oil pump bolts, slide the oil pump up against the tools, then fully tighten the oil pump Billet oil pump alignment tools are the thing you need when removing an oil pump. Perfect when doing a cam swap, these tools mount above the existing oil pump and an easy reinstall when putting the oil pump back in the engine. No need to worry about if the oil pump is straight with Billet oil pump alignment tools. Faliure to align the oil pump correctly result in low oil pressure and/or engine damage,this girdle allows you to secure the pickup tube using both bolt holes to proper oil circulation. Professional manufacturing, wonderful characteristics and performance. The oil pickup tube on engines is only secured by one bolt. This can potentially lead to a poor seal on the oil pump,the billet aluminum Oil pump girdle solves the issue by placing a clamp on both sides of the tube, securely holding it in place. Then re-installing the pump.Failure to properly align the oil pump may result in low oil pressure or pump failure. This girdle allows you to secure the pickup tube using both bolt holes to ensure proper oil circulation. Feature: Oil Pump Alignment Guide Tool Kit for Gen V Lt4 Lt5 L83 L86 L87 Used when temporarily removing an oil pump (such as doing a cam swap), then re-installing the pump Compatible with for Gen V series Lt4 Lt5 L83 L86 L87 engines. Machined from premium aluminum. Fitment:For Gen V Lt4 Lt5 L83 L86 L87 for Group Engine Color:Red Material:Aluminum Alloy Package Contents: 1Set * Oil Pump Alignment Tool Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.