1999 dodge dakota leaf spring shim
#11
11-23-2010, 08:10 PM
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#12
11-23-2010, 09:42 PM
Join Date: Dec 2009
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Yup. Before the tune up I got less hp and better mpg. I got 15mpg in city and 22 on highway. Now I have got more hp and worse mpg, 11 mpg city. And 12 highway. It stays pretty consistent mpg wise regardless of how my foot acts. But prior to tune up there was one size smaller tire, since I've went bigger I'm sure that attributes for some of the loss. And also I was running 26lb of air on all 4 tires since I've put the bigger tires. But today I aired them up to 32lb to see how much difference it makes mpg wise.
#13
11-24-2010, 10:51 PM
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Join Date: Nov 2010
Location: upstate n.y
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Never heard that shims were for anything more than pinion angle adjustment myself. Are you leaving your line lock on during takeoff?Attachment 10918
Last edited by 413maxwedge; 11-25-2010 at 12:45 AM.