AV, on another point, I had to remove my steering wheel on the SL to obtain clearance for the removal of the cluster. I used an air wrench to loosen the steering nut. If you should find that this is necessary, just pop off the center portion of the wheel (horn actuator), then be sure to make a mark of the position of the steering wheel spline with the shaft. Next, just back off the large flanged nut and wheel should just pull off by hand. Did 88's have air bags? This, of course, complicates things a bit and in which case, do not do the above!