What size speakers would go in a 85 Toyota Pick up?

I am looking to get my bf some speakers for his 85 toyota truck that we go wheeling in. I just need to know the size so I can get him some new ones and I want to surprise him, so I can't ask him. Anyone know what size or suggestions on what to buy???What size speakers would go in a 85 Toyota Pick up?It looks like they are 4" speakers. Here is a link just put in the vehicle type and it tells you what fits. and it looks like it is 4". Hope this helps.What size speakers would go in a 85 Toyota Pick up?go to crutchfield . com , enter what model etc etc and they show you everything that fits . its great prices and if you need a harness or something they usually add it for free, the customer sercvice is the best . i think it would be perfect in your situation . if for some reason u didnt put info in correctly or say he loved the idea but rather the upgrade model or what ever reason the return policy is no problem . so damn easy,i use the site for research all the time