445FEBronco 13 #1 Posted October 15, 2017 OK figured I would drain all the old fluid out and change the filter before I bolt the rear end up. When I looked up the filter I have about a kazillion optional filters? Which filter would be larger to hold more fluid and have more filter area ? Thanks for the input. Share this post Link to post Share on other sites
953 nut 55,776 #2 Posted October 15, 2017 The correct filter would be a NAPA 1410. Do not use an automotive oil filter. 2 1 1 Share this post Link to post Share on other sites
445FEBronco 13 #3 Posted October 15, 2017 Thanks, I wasn’t sure because all the info I found was on a GT model. Dang 30 bucks, I guess it’s one hell of a filter. 1 Share this post Link to post Share on other sites
Sarge 3,463 #4 Posted October 16, 2017 That filter will work fine - there is also a WH/Toro filter that is a non bypass with possibly a better micron rating - somewhere around here we have a listing of the correct filters and what they do but can't find it at the moment . Be really careful with that pump/motor in that hydrogear transmission - keep it surgically clean inside and change oil once a year or several times if working it hard - takes very little dirt/particles to destroy it which is why they have a somewhat bad reputation compared to the piston to piston later versions . Good news is , if it ever blows up and can't be rebuilt the newer piston to piston C-series whole axle assembly will bolt right up - they were a direct replacement/upgrade on a dealer bulletin I've read somewhere - so that's good news as they are quite plentiful . Externally you'd barely be able to tell it was ever changed on your '66 as a bonus... That hydrogear is far tougher and stronger than most would ever give it credit for - if you can find one that wasn't totally neglected and abused , which most were - mine is more than strong enough to break the frame like yours and I suspect it will continue to live quite awhile longer if taken care of . Sarge 1 2 Share this post Link to post Share on other sites
445FEBronco 13 #5 Posted October 19, 2017 (edited) Hoping to get back on it this week, getting close though. Gonna flush it out a bit upside down the fill it with fresh fluid, I checked it out before I took it apart and it was not exceptionally loud and seemed to work fine. I have the same Hydro in my Power King 1218 and it has been good to me after 30+ years of use. Edited October 19, 2017 by 445FEBronco 1 Share this post Link to post Share on other sites
Platinum556 2 #6 Posted August 12, 2019 What fluid is best to use in these rear ends? Share this post Link to post Share on other sites
953 nut 55,776 #7 Posted August 12, 2019 5 hours ago, Platinum556 said: What fluid is best to use in these rear ends? The fluid you use will depend on the type presently being used in the transaxle. They came from the factory with Dexrom ATF (automatic transmission fluid) which is pink colored. Some units were changed over to 10 W 30 motor oil when they underwent major servicing and that would have an amber color just like any automotive motor oil. It is best to stay with the type of oil that is in the unit now. Take a couple minutes and introduce yourself to the group, we also like pictures of your , https://www.wheelhorseforum.com/forum/47-introductions/ 3 Share this post Link to post Share on other sites
