
6.6TD,AT,MP1626,REBUILT,NOTES. SIERRA 2500 PICKUP 16-19 6.6L (diesel), dash switch (electric shift), (opt NQF). SIERRA 3500 PICKUP 15 6.6L (diesel), electric shift opt NQF, bolt-on speed sensor. SIERRA 3500 PICKUP 16-19 6.6L (diesel), dash switch (electric shift), (opt NQF).