4.0 sparkplug problem solved
After hours of fussin, cussin, & knuckle bustin here it is. Multiple extensions & swivels? forget it! No extensions or swivels? nope. On the pass. side through the wheel well 3/8s ratchet, swivel & sparkplug socket. A 3" extension is to long so use the 1.5" swivel as an extension. On the drivers side I had to use extensions & a swivel through the engine compartment & or through the wheel well. Hope this helps someone. Be safe use jack stands.