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5" Tall Tapered Block Kit for 2017-2021 Ford Super Duty F250/F350 SRW Trucks
The best way to treat carbon buildup is to prevent it
Free shipping — designed for commercial & fleet diesel operations
14 gauge 1/8" steel shell with 1/4" steel mounting brackets
SPE Motorsport Full Lock Differential Kit For 2011-2019 Ford F-250/F-350 & 2015-2019 F-150 Year & Model:15-17 F150 5" Tall Tapered Block KitThe SPE Motorsport Full Lock Differential Kit overrides the factory 20MPH safety lockout on your Ford electronic rear differential locker, letting you keep the e locker engaged at any speed you choose 45, 50, or 75MPH, it's your call. This add on integrates with the TCCM (transfer case control module) to maintain locker engagement past factory speed limits, and takes only about 10 minutes to install. Engaging the rear end is now truly at your
