buying 87 jimmy diesel

[K5-newf]

hey im lookin at buying a 87 jimmy diesel i was just wondering wat areas and problems should i look for before i buy it.
i know to check the tail pan and the floor in front of the rear pessenger seats.
one thing i noticed is that the front tries are a size smaller then the back i was told that u can not put it in to 4x4 like this because 1 set of wheels have to work harder then the other 2 im not sure if this is true so anyones info is greatly appreciated
sry about the noob questions

 

[Metrodps]

I want the Diesel me jelous...... can't help you on wheels but it makes sense. I would prefer a diesel if it is running right they get around 22 mpg on highway from what I am told.

 

[Teamstatic2001]

Correct If the tires are off a bit. A larger tire covers more ground in one revolution. So if the back tires are larger they would be pushing the front tires.

 

[broncoman6524]

IIRC, if they are like an inch or half different it wouldnt hurt much to use 4x4 a little IE test it and stuff like that. Same with if you have different gearing inthe front and rear. The gears can have a little bit of difference like .03 or .3 one of the two lol.