When I purchased my Raptor, The dealer offered me a 5 year warranty for $1250 and If i took it, it would reduce my interest by .25%. In my case, the warranty costs about $7 per month, but over the life of the load was free with interest considered. I took it.... I know you are not dealing with a new one, but maybe this might help someone else...
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Dave and Linda (6 kids and Frank the Bulldog)
2011 Dodge 3500 SRW w/Cummins 6.7l and Bullydog (EGR, CAT, and DPF deleted)
2012 Raptor 365LEV
2006 Harley Davidson Road King
custom golf cart
Firestone 5k airbags
Reese 5th wheel hitch