Transmission 3rd 4th gear slip!

[Edubarajas]

So the past couple weeks I been feeling this jerking on the tb. Like if the overdrive was engaging my rpm would go up and a slight jerk. Today I was pulling a trailer with a motorcycle when I notice my rpm go all the way to 4,000 rpm. I slowed down and only first,second gear where engaging. I think I need to do an overhaul in my transmission? What do you guys think? Am I on the right track?

[JMHinAZ]

Eddie, Sounds like the rebuild may be in your future. I've only put a shift kit in mine, so I'm far from qualified to give you an educated answer. Have you dropped the pan to see what it shows?

[Edubarajas]

Just flushing out transmission fluids. Next start unbolting the transmission to drop it down! The fluids where bad smelt like burnt oil.