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Allison 1000 front pump leaking
Posted to Transmission Forum on 1/11/2007 6 Replies

Hello group,

Bare with me on this one. I have family member with a 2001 HD3500 GMC with a Duramax and Allison transmission. Another shop pulled the trans and replaced the front pump seal due to leakage. After re installing the trans., they still had a leak s... Login to read more.

6 Replies Received (View Replies)