Grey gear box - reverse gear goes forward

[Trevor_B]

Hi guys,
Rebuilt a grey gearbox recently and when installed reverse gear moves the car forward 

All other gears work correctly.

My guess is that I installed the reverse idler gear backwards (despite Harv's warning in his rebuild guide  ) although I don't know if that is possible.

Any advice/similar experiences appreciated prior to pulling box out.

Cheers
Trevor_B

[Trevor_B]

Found the issue.... it was a selector rod adjustment issue as other gears also selecting incorrectly or not at all.

Someone else had installed dodgy selector rods.

Trevor_B

[Harv]

Glad to hear you found the problem Trev.

The reverse idler will only go in one way - the helical cut of the gears makes it clash if you try to go the other way around.

Cheers,
Harv