youd have to fill the holes with bondo or something to keep it from rusting
but as far as mounting it on the under carriage
if its 2dr, i doubt you could do that, but inside your hatch you could make a custom mounting plate

 

will it be hard to remoe the current bracket that is on the rear, and where would i mount the tire on the inside? i couldnt mount it underneath becasuse of the gas tank huh

 

You have two options:

You can mount in on the rear of the vehicle, where it is now. If its because visability and you simply can't see, I suggest you buy this: http://www.sblazer.com/index.html
I did, helped alot.

or

Mount it in the trunk. I'd go see a junkyard and see if you can find the inside mount some 2dr blazers have.

Hope it helps!

 

now what is the cost for the tire lowering kit and how does it mount to my truck?

 

Its $70, its a few bolts, take the spare tire off, put the plate on, put the spare tire on the plate, tighten the bolts, put your cover back on. Thats it, took me about a half hour.

 

would u suggest as apposed to trying to remove and mount inside?

 

Absolutely.

 

If you decide to mount it inside, my brother, blazin97, says he will trade you the inside mount and plastics for the swingarm and inside plastics.

 

You won't be able to mount a 31' tire inside with stock hardware. This is why all ZR2s came with the swing arm mount.

You have three options. One is the lowering plate as already mentioned. Two is move the tire to the roof rack. Three is strap it down behind your rear seats.

My suggestion is to go with the lowering plate.