Update!
i got it ckecked out and they said it would cost about 650 2 replace and considering i only paid 600 for the car i dont think its worth replacing so how long do you think my car will be drivable with out it getting replaced...
Have the clutch and transmission inspected; rising RPMs with little speed gain usually means a slipping clutch or failing transmission. Also check engine and suspension condition. A slipping clutch will not remain drivable for long, so replace the failed unit if the rest of the car is sound.
The owner of a 1986 Saab 900 2.0L with about 180,000 miles says RPMs rise normally when accelerating but road speed barely increases. A shop quoted about $650 to replace the failed part, and the owner asked how long the car would remain drivable without the repair. Experts said the clutch or transmission is failing, noted that a dragging clutch will not go far, and recommended checking the engine and suspension. If the transmission is the only problem and the car is otherwise well maintained, they suggested repairing it and continuing to drive the Saab.