HERD546
Member
My 09 Tahoe Z56 PPV is showing 14.5 MPG average on the system. I am planning to add a Detroit Tru Trac posi unit to my truck. I have been thinking about a gear change from the 3:73 to a lower gear. Just wondering what I can expect in mileage using a 3:42, 3:23 or 3:08. I am willing to give up a little get up and go for better fuel mileage.
With my 95 Caprice wagon with the LT-1 5.7 and a 2:56 I was getting 23-24MPG going 75.
With my 95 Caprice wagon with the LT-1 5.7 and a 2:56 I was getting 23-24MPG going 75.