Forum Discussion
carl2591
Sep 23, 2014Explorer III
i was wondering about the rear-ends on f250 vs f350.. what is the spring and block you are talking about on 350 models.
anyone have a picture of this spring/ block thing..
also on rear-ends.. how hard or expensive would it be to convert a 3.73 ratio rear to 3.55.
Was thinking about doing the swap on a 7.3L 2003 f-250 SD. Was reading on the airstream forums where a guy did that and pulling a 28 ft AS is getting 14-15 towing, and 22-25 MPG non..
no issues pulling the long 6-7% grades with no high EGTs or lugging issues.
anyone have a picture of this spring/ block thing..
also on rear-ends.. how hard or expensive would it be to convert a 3.73 ratio rear to 3.55.
Was thinking about doing the swap on a 7.3L 2003 f-250 SD. Was reading on the airstream forums where a guy did that and pulling a 28 ft AS is getting 14-15 towing, and 22-25 MPG non..
no issues pulling the long 6-7% grades with no high EGTs or lugging issues.
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