Is there anyone who might be able to measure the diameter, offset and width of the steel height adjustment wheel on older snow throwers that were build before WH switched to skids? My manual list the part number 1987 (see model 6-6211). These were used on several models. The search here and on the internet populates equipment made in the 1987 year and I am unable to find anything on this obsolete part. The previous owner replaced mine with 6" plastic wheels which interfere with the angle sides of the front of the snow thrower. If anyone has a set they'd like to sell, I will consider that as well. Thank you.