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Pakistan, Islamabad
1 Level
737 Review
31 Karma

Review on Genuine Allison Filter Kit Internal by David Carmody

Revainrating 5 out of 5

2008 GMC Sierra SLT 2500HD Duramax/Allison

Drained and refilled for 40,000. I changed the filter wrap every time I changed the oil. At 80k I unscrewed the filter and the internal filter. The fluid isn't bad with some clutch material in the sump. Reused the oil pan gasket clean and torqued to 20 ft lbs. Used approx 10 liter Mobil 1 Delvac for Allison Trans. Seems to have smoothed the switch.

Pros
  • Automotive
Cons
  • Can't remember