Was 4.10 an option for 97-03 and front axle compatibility?
Technical Article Contributor
Joined: Jan 2007
Posts: 10,636
Likes: 264
From: Vernon, NY
Yeah, like glc said, you need a programmer or take it to the dealer for them to adjust/reflash per the new gearing spec. I went the dealer route and for $120, I was good to go.