I have a 96 f150 with a 5.0
I found a kit with 10.2 mm wires and ngk iridium 4 plugs that fit 79-95 mustang 5.0 before I spend the money will they forsure fit my truck?

 

I checked Summitracing.com and picked a set of wires that fit a '96 F150 5.0, Moroso 73630 in this case. The Moroso 73630 wires also fit Mustang 5.0 engines from '84-'95.

This implies that the wire/plug set you have found will fit your F150, but, check it out for yourself: (The 10.5mm wires may not fit the wire guides.)

http://store.summitracing.com/egnsea...=KeywordSearch

If I were changing wires and plugs I'd go Magnecor wires and Bosch P+2 plugs. Magnecors are the best wires you can get. The Bosch P+2 plugs live up to the claim by Bosch that improved mileage/performance will be attained when a set is installed (My Lincoln TC 4.6L gained almost 2mpg after installing a set of P+2 plugs inplace of OEM.)

http://www.magnecor.com/magnecor1/main.htm