I have a 03 4.0l v6 4wd ranger that im currently working on pulling the engine out. But ive noticed that it has two chains in front and 2 in the back one on each corner. Most pictures ive seen have 3chains in front and 1 in the back. So my ? Is if i order the timing chain kit will it work for it?. Because the kits come with 4chains( 2long and 2small ) with 2cassettes. Any help would be very appreciated thanks!!.