Wheel back spacing
Wheel back spacing 
Hey guys, I have a 2004 4x4 ecsb and was wanting to know what back spacing do ya'll reccomend on an 18x10 weld wheel. The wheel I am buying is a Velocity wheel and putting a 285/60/18 Nitto Terra Grappler A/t. Also, what is the stock wheel back spacing on the 16" wheel!!!!!!! 
Your best method of determining what you need is to physically measure your BS on your rim. Take a straight edge, lay it accross your inside rim shell and measure from the straight-edge to the hub pad.
Knowing your current wheel, then you can make your decision on what to consider regarding your new rim. If your new rim is larger, just be sure to compensate for the larger rim and adjust BS off of that.
Some things to look for is make sure your caliper overhang is not excessive or the overall radius (include the top of the caliper) is not larger then the inside of the new rim your looking at...most likely the radius won't be an issue with the large rim your considering.
Hope this helps,
Steve
Knowing your current wheel, then you can make your decision on what to consider regarding your new rim. If your new rim is larger, just be sure to compensate for the larger rim and adjust BS off of that.
Some things to look for is make sure your caliper overhang is not excessive or the overall radius (include the top of the caliper) is not larger then the inside of the new rim your looking at...most likely the radius won't be an issue with the large rim your considering.
Hope this helps,
Steve
