Awhile ago, I shifted into 2nd gear and the right (when looking from the driver’s seat at the gearshift) transmission linkage cable broke, leaving it stuck in gear. I have replaced the cables, but the car remains fixed in 2nd. The levers on the transaxle, particularly the right one (when looking under the hood, which is connected to the left side of the gearshift when viewing it from the driver’s seat) doesn’t allow for the proper range of movement to shift into any gears, except maybe 3rd or 5th, or even neutral. The lever seems unable to move forward enough to allow for the gears to engage. Is there any way I can free the lever to allow for movement,such as taking it out of gear, and do I need to get into the transmission? How would I go about fixing the problem (in detail please), or is it necessary to take it to a mechanic?