WHNerd 8 #1 Posted May 19, 2020 I have 2 Wheel Horses, an Electro 12, and a GT14, both with hydos, on the Electro, the dipstick to the tranny has a hole and a cotter key in it, I'm assuming that's to relieve pressure. The GT does not have a hole in the dipstick. Which one is correct? Thanks Share this post Link to post Share on other sites
pfrederi 17,866 #2 Posted May 19, 2020 There should be a small hole in the dipstick head. It should be filled with nodular brass not a cotter pin. The nodular brass breather lets pressure out but keeps dirt out. The hole can be hard to see and may be covered with paint 1 Share this post Link to post Share on other sites
WHNerd 8 #3 Posted May 22, 2020 Thank you, I compared the Electro to the GT dipstick and I see want you mean! Share this post Link to post Share on other sites