I didn't find where you are discussing heavy duty trucks, so I'll ask here about my Kenworth w900L, y2006( Suspension AG460, Transmission 18 SPD, Wheel Base 262). So, as you see I've bought it something like 8-9 years ago and everything was perfect excepts transmission, and I thought it's because I got it from unknown car delearship wallwork trucks, but I read some comments and as I know so far just I have such problems, unfortunately. So maybe someone can suggest me, which new transmission to implement? Because I think to buy from some different truck 13SPd. Generally, I haven't decied yet.

 

Maybe I need to throw a massive truck and start ride a ford f-150, for example?

 

Sorry to hear about your transmission issues with your Kenworth W900L. If you're considering swapping to a 13-speed transmission, it can be a good move for better fuel efficiency and performance, especially if you do a lot of highway driving. Eaton Fuller is a popular and reliable choice among many truckers.

Before you make the switch, I'd recommend consulting with a trusted mechanic or a reputable truck service center. They can provide insights on compatibility and any additional modifications you might need. If you're still looking at heavy-duty trucks, the W900 is a solid choice overall, so fixing the transmission could be worth it.

Switching to an F-150 could be an option if your hauling needs have changed significantly, but if you still need the heavy-duty capabilities, investing in a new transmission for your Kenworth might be the better long-term solution.

Best of luck with your decision!