My friend has a 99 2wd and is having problems with driverside front wheel locking up. Especially going downhill on gravel roads. He also has a problem with that rotor warping and has replaced twice in about 18 months. Dodge supposedly fixed the first time,he said they replaced proportioning valve also and it still happens. He is a farrier and hauls a lot of weight,I told him to be sure and keep the rears adjusted. He's getting discouraged because he recently had to replace trans. (auto) and the dreaded lift pump. He is hating the fact that he got rid of his chevy 2500 gasser for the dodge. Any help would be appreciated.