Dave,
Yes, I confirm that it is going into gear, but is being forced out under any load. I would not say the problem relates to the actual initial engagement of the gear, this seems to be fine. It looks to be like the gearbox had got to come out. In your experience, is it worth repairing this reverse issue, given the mileage (200K) the rest of the gearbox has done, or is it better sense to replace the whole gearbox with a lower mileage used, or re-conditioned box? She is only a rough farm runaround, so any expense saved......
Many Thanks for both replies. I'm getting quite good at planning all turning around with a slope in mind, even if it means an extra few 100yds at times.
Thanks again - Peter