https://www.worthingtonagparts.com/tractor-parts/2-wheel-drive-front-axle-steering/steering-pumps-motors-gear-boxes/power-steering-parts/steering-valve-brick-to-fit-john-deere-new-aftermarket-wn-re247520?utm_medium=shopping&utm_source=google&gad_source=1&gad_campaignid=22557134384&gbraid=0AAAAACvDNALW5ec-EzQ_dJcSEIRWRefus&gclid=CjwKCAjw4K3DBhBqEiwAYtG_9NDuFFoOHUGMf1aIJnTC3Ko36kxp1J9A2T8fIHhiDOakyOmicctK_RoCHnMQAvD_BwEAbove is the one I purchased. Not sure on the front wheel assist thing.
4440 getting hard to steer
