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Ships within 48 hours · Estimated delivery Aug 22 - Aug 27
Gen II 426-572 Hemi
1987-1990 Jeep Wrangler
2020-2023 GMC Sierra 3500 HD 98
Also includes O2 Ports in Collectors for EFI conversion
For Use With Flathead Fords From 49-53
Ratech Basic Ring & Pinion Installation Kit - GM 12 Bolt Passenger 356905 Gen II 426-572 HemiBasic Kit includes pinion shims, crush sleeve, pinion seal and cover gasket. Ratech wants all racers to know about The Myth that "All Shim Packs in the market are the same. They're just washer shaped steel that come in different thickness." WRONG! Ratech manufacture all of their shims in house on their own machinery. Ratech uses the absolute finest American made Hardened Shim Stock available. Ratech uses only hardened shim stock not sheet metal
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