I did a search and got this immediately.

https://www.ebay.com/itm/324803273984
rebuild yourself or exchange above for:
https://www.ebay.com/itm/185069865135

If you are on a budget, I would post in the parts wanted section and also continue your search elsewhere.
They do show up from time to time at a reasonable price but it takes patience.

Last edited by buoymaker; 09/27/2021 2:24 AM.

"Adding CFM to a truck will only help at engine speeds you don't want to use."
"I found there was nothing to gain beyond 400 CFM."