Several things make a difference in whether or not the height of your new granite kitchen counters match the height for your slide in range.
Stove height countertop height.
Note that this height recommendation factors in the 29 to 32 inch height of standard bar stools plus a clearance of 10 to 13 inches from the top of the stool seat to the countertop.
There should be adjustable feet to move it up or down to better match small differences in height.
Flooring under the cabinets but not under the stove.
Standard counter height is 36 and ranges generally are made to match that.
But the dimensions of most stoves are fairly standard.
This is the same height as most countertops so the cooking surface on your stove top matches the preparation surface on the counters.
Since both surfaces are the same it simplifies cooking and food preparation.
According to kitchen cabinets and hardware the height of the stove top is standardized at 36 inches.
The accepted standard for kitchen counter height is 36 inches.