# Why It May Be Worth TCM Tuning Your 68RFE Cummins

> The Chrysler LLC Cummins 68RFE is a six-speed automatic transmission engineered primarily to power the group's SUVs and heavy-duty trucks.

- **Source:** [SlashGear](https://www.slashgear.com/1946561/cummins-68rfe-transmission-tcm-tuning-benefits/?utm_source=gearopen.com&utm_medium=referral&utm_campaign=feed&utm_content=68aff9cf56ca1e61f08a267e)
- **Published:** 2025-08-28
- **Category:** Cars
- **Tags:** #cummins #tuning #transmission #worth #automatic #believe #chrysler #dodge
- **Canonical:** http://localhost:4321/a/68aff9cf56ca1e61f08a267e

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_GearOpen's distilled summary. The full original article is published at SlashGear (source link above); GearOpen does not republish the source's full text._