jumping out of 1st gear

Forum: 

Hi Guys
Got a problem with our '93 f75. It keeps jumping out of first gear when under load, especially when towing the horse!!! Maybe it's just complaining about the smell but it's a hell of a jolt when it jumps out!!!

It's fine in other gears and the clutch seems ok, you can fight it by keeping pressure on the gear stick in first and it will hold in but it is getting worse.

It's worse if you try to move off quickly, not too bad if you move away slowly. The old tonka toy has got just over 100k on the clock and is fab for taking the horse out.

Any ideas on how scary this might be to fix and how big a remortgage we might need to get the job done?

Scratch one-s head
p and A