1974 VW Passat gear shifter issue

Hi :
I have a 1974 Passat B1 .
1 - Having problem with 4th gear coming out gear . what is the problem ?
2 - Shifter is lose and hard to select the gears . Where can I buy linkage bushes and repair kit ?

Thank you
Amir

Likely find the gear pop relates to the bushing issue


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Standard Passat issue, especially when going over a bump in the road.