SPE FULL LOCK DIFF KIT
If you have a 6.7 Powerstroke with the electronic locker diff option than this is the kit for you. The SPE 6.7 Full Lock Diff Kit is an add on to the TCCM that allows the diff to stay locked in past 20mph and until you want to unlock it. This kit takes about 10 minutes to install & maintains the factory switch! Detailed instructions are included. It will not cause any diagnostic codes. It also eliminates the lag time that the E locker has in factory form when engaging and disengaging. Free shipping!!
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