Forum Discussion
APT
Jun 10, 2013Explorer
There were a number of reports of the OEM receiver failing well under the OEM ratings when those trucks were new. I researched and wanted essentially Dadoffourgirls' prior Suburban and had budgeted an extra $200 for a replacement receiver.
Here is a gear/torque multiplciation comparison netween the 8.1L/4.10/4-spd and 6.0L/3.73/6-spd. While the peak torque is quite a bit higher with the 6.0L, the much deeper first gear and shorter gear spacing really mates well and provides a significantly improved driving experience over the prior 4-spd. Maybe not as great as the 8.1L at the 6.0L requires some extra downshifts, but it pulls pretty hard over 3500rpm.

Here is a gear/torque multiplciation comparison netween the 8.1L/4.10/4-spd and 6.0L/3.73/6-spd. While the peak torque is quite a bit higher with the 6.0L, the much deeper first gear and shorter gear spacing really mates well and provides a significantly improved driving experience over the prior 4-spd. Maybe not as great as the 8.1L at the 6.0L requires some extra downshifts, but it pulls pretty hard over 3500rpm.

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