{"product_id":"atp-parts-so-38-automatic-transmission-speedometer-pinion-seal","title":"ATP Parts SO-38 Automatic Transmission Speedometer Pinion Seal","description":"\u003ch2\u003eAutomatic Transmission Speedometer Seal\u003c\/h2\u003e\u003cp\u003eATP Parts SO-38 is an automatic transmission speedometer pinion seal made as an exact-fit replacement for the original sealing point in the speedometer gear housing, speedometer adapter, sensor, and driven gear sleeve with O-ring applications. It is used across a wide range of Chevrolet, GMC, and related GM vehicles from 1987-1997.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eExact-fit replacement speedometer pinion seal\u003c\/li\u003e\n\u003cli\u003eFor automatic transmission speedometer gear housing and adapter locations\u003c\/li\u003e\n\u003cli\u003eMatches the short purple seal configuration with 2.125\" outer diameter and 1.875\" inner diameter\u003c\/li\u003e\n\u003cli\u003eFits many GM truck, van, SUV, and performance applications\u003c\/li\u003e\n\u003cli\u003eCross-references BBB Industries 17451 and Carlson 17453 for the same application\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFitment Coverage\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFits 1987-1997 Chevrolet Astro, speedo gear housing \/ speedometer adapter \/ sensor \/ speedo driven gear sleeve applications.\u003c\/li\u003e\n\u003cli\u003eFits 1987-1997 Chevrolet Blazer, speedo gear housing \/ speedometer adapter \/ sensor \/ speedo driven gear sleeve applications.\u003c\/li\u003e\n\u003cli\u003eFits 1987-1997 Chevrolet C1500, speedo gear housing \/ speedometer adapter \/ sensor \/ speedo driven gear sleeve applications.\u003c\/li\u003e\n\u003cli\u003eFits 1987-1997 Chevrolet C1500 Suburban, speedo gear housing \/ speedometer adapter \/ sensor \/ speedo driven gear sleeve applications.\u003c\/li\u003e\n\u003cli\u003eFits 1987-1997 Chevrolet C2500, speedo gear housing \/ speedometer adapter \/ sensor \/ speedo driven gear sleeve applications.\u003c\/li\u003e\n\u003cli\u003eFits 1987-1997 Chevrolet C2500 Suburban, speedo gear housing \/ speedometer adapter \/ sensor \/ speedo driven gear sleeve applications.\u003c\/li\u003e\n\u003cli\u003eFits 1987-1997 Chevrolet C3500, speedo gear housing \/ speedometer adapter \/ sensor \/ speedo driven gear sleeve applications.\u003c\/li\u003e\n\u003cli\u003eFits 1987-1997 Chevrolet Camaro, speedo gear housing \/ speedometer adapter \/ sensor \/ speedo driven gear sleeve applications.\u003c\/li\u003e\n\u003cli\u003eFits 1987-1997 Chevrolet Corvette, speedo gear housing \/ speedometer adapter \/ sensor \/ speedo driven gear sleeve applications.\u003c\/li\u003e\n\u003cli\u003eFits 1987-1997 Chevrolet Express 1500, speedo gear housing \/ speedometer adapter \/ sensor \/ speedo driven gear sleeve applications.\u003c\/li\u003e\n\u003cli\u003eFits 1987-1997 Chevrolet Express 2500, speedo gear housing \/ speedometer adapter \/ sensor \/ speedo driven gear sleeve applications.\u003c\/li\u003e\n\u003cli\u003eFits 1987-1997 Chevrolet G10, G20, G30, S10, S10 Blazer, Tahoe, and other listed GM applications with the same seal configuration.\u003c\/li\u003e\n\u003cli\u003eFits 1987-1997 GMC C1500, C1500 Suburban, C2500, C2500 Suburban, C3500, Jimmy, Safari, Sonoma, Yukon, and other listed GMC applications with the same seal configuration.\u003c\/li\u003e\n\u003cli\u003eFits 1987-1997 Oldsmobile Bravada, Buick Roadmaster, Cadillac Fleetwood, Pontiac Firebird, and other listed GM applications with the same seal configuration.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhat This Seal Helps Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eTransmission fluid seepage at the speedometer pinion seal area\u003c\/li\u003e\n\u003cli\u003eFluid leakage around the speedometer gear housing or adapter\u003c\/li\u003e\n\u003cli\u003eWorn or hardened original seal material\u003c\/li\u003e\n\u003cli\u003eSpeedometer drive area contamination from a failed seal\u003c\/li\u003e\n\u003cli\u003eService repairs on GM automatic transmission speedometer components\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\u003cp\u003eVerify the seal dimensions and the short purple configuration before installation. This part is used in speedometer gear housing, speedometer adapter, sensor, and driven gear sleeve locations, so matching the original application is important for proper sealing. Confirm vehicle year, make, model, and transmission setup against the listed fitment before service.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eATP Transmission Seals and Gaskets are positioned as exact-fit replacement parts for transmission sealing service. SO-38 is built to replace the original speedometer pinion seal specification used in the listed Chevrolet, GMC, and related GM applications.\u003c\/p\u003e","brand":"ATP Parts","offers":[{"title":"Default Title","offer_id":43385734660277,"sku":"BBFB-SO-38","price":9.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/AT_SO38_Fro_fb1f3652-b340-4cba-8c13-3890dd2a1270.jpg?v=1774704588","url":"https:\/\/www.partcatalog.com\/products\/atp-parts-so-38-automatic-transmission-speedometer-pinion-seal","provider":"PartCatalog","version":"1.0","type":"link"}