4L60E 4L65E 4L70E High Performance Pressure Regulator Spring Sonnax 77917-10

img{max-width:100%} 4L60E 4L65E 4L70E High Performance Pressure Regulator Spring Sonnax 77917-10 1993 Up This high-quality, heavy-duty pressure regulator valve spring 77917-10 from Sonnax fits GM 4L60-E, 4L65-E and 4L70-E transmissions. The spring increases line pressure by approximately 13%, improving transmission performance in both standard and high performance applications. Increases line pressure by approximately 13% Produces firmer engagements/upshifts without creating harshness or clunky downshifts Improves transmission performance in both standard and high performance applications Parts ship daily from our distribution center. FREE SHIPPING on US Orders In a Hurry? This item is available for expedited shipping GOT QUESTIONS on your specific Year/Make/Model? Send us a message on eBay. If you have any problems with your order, please message us immediately to resolve your issue. We have a technician available to assist you. This item is packaged for Wholesale