Janus just dumped on us in northwest NJ. About 8 to 9 inches with 14 inch drifts. Checked out good ole youtube for diy impeller kits. Picked up some rubber wall molding and self tapping #10 screws from Lowe's. I DIY'd this into a recently obtained 1132, 38090. I must say that the impeller metal was quite beefy and beat up two china stamped drill bits. I did not add any nuts to the back of the screws. There was about a 1/2 inch gap from the impeller arm to the housing. There are three arms on the 38090 impeller. I modded two of the three arms in the impeller. I was told that old school snowblowers are not known for the length of their throw, but for their ability to plow thru the deepest fluff.