If its a 2.25 diesel and you intend going anywhere cold , make sure you have plenty of battery available , as they wernt the best starter in the world ! They would be an ok performer in a 88 but a 109 and loaded and things really slow down . An overdrive basically lets you really speed up downhill , as uphill you wont be in overdrive. About 40 years ago they felt slow in the traffic (109 with lots of kit) , they are really a high speed tractor , if you start with that view you wont be dissapointed, or surprisd come to that :smiley_drive: They are generally very reliable, and will take quite athrashing for a lot of miles, they are not what you call ahighly stressed engine . The old cav dpa type pump and the injectors dont give any trouble once set up , and the engine when tuned right should sound slightly harsh , if it sounds at all soft then timing is off . HTSH