Peugeot Boxer motorhome jumping out of gear

I have a motorhome on a Peugeot Boxer van chassis. The problem is when accelerating it jumps out of fifth gear. Is this an easy fix or will the gearbox need changing?

Asked on 30 April 2016 by tony1956

Answered by Honest John
Unfortnately it's a common problem due condensation inside the transmission when these vehicles are left standing for long periods. Needs a specialist gearbox rebuild. Never happened when they were vans doing 50,000 miles a year for 4-5 years, then scrapped. Try: etc. No joy, Google <manual transmission rebuilds>
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