SLEDOG Posted February 8, 2023 Share Posted February 8, 2023 I just came in late on this convo but I used to own a 97 RD 10-wheeler spec’d-out like you have…double frame and everything on a dump truck with aluminum box….great truck and would out pull my 460aset any day of the week! Good choice putting the 18 speed in there… Quote Link to comment https://www.bigmacktrucks.com/topic/70946-rd688s-with-eaton-18-speed/page/2/#findComment-524902 Share on other sites More sharing options...
masterwelder Posted February 9, 2023 Author Share Posted February 9, 2023 Thanks. I can wait to get a load on and give it a good workout. The 400 pulls good but I’m thinking of Rochester stage 2 injectors and a little bigger turbo. I’m the only driver and I’m not looking to win any races but a little extra HP will help with some of the heavier stuff. Quote Link to comment https://www.bigmacktrucks.com/topic/70946-rd688s-with-eaton-18-speed/page/2/#findComment-524926 Share on other sites More sharing options...
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