- Jun 30, 2012
The linkages are used to shift into every gear. If there was an issue with shifting into every gear the linkage is a likely culprit. You've got an issue shifting into two gears, thus it is likely an issue with something that those two gears share, like a shifter fork or their shaft, not something like the linkage.
If the shaft is no longer spinning (or seized) for whatever reason, its gear sets will never properly engage. This could be similar to trying to put a parked car into gear without depressing the clutch, if the gear teeth just happen to line up it'll engage perfectly, but if the teeth not lined up you're hosed. If the shifter fork is broken or jammed, for whatever reason, only those two gears will be affected and nothing else.
I don't think the garages are necessarily trying to hose you with an excessively costly repair, their conclusion that the transmission needs internal work does follow what symptoms we know. Personally, I would still want to clap eyes on what they've looked at.
If someone is quoting you a price for the largest component possible without actually having any idea what the problem is, I would call that 'hosing.'
And no, the linkage does not have to affect every gear. He has forward and back, so the top rod is working fine. But if that rod that moves the sideways selector (goes between 1-2, 3-4, and 5-R positions) has a problem, it could easily knock out either the two gears on the right, the two gears on the left, or both. I could not see it affecting 3 and 4, since that's the 'straight up' position.