Fits Previa 91-93 driveshaft with 12mm in outer diameter of all 6 rubber circles. When your Previa whistles at high speeds, bring it in to your mechanic to replace the drive shaft couplings. A set of two should always be change together. This part has a 1-Year Warrantee and has some spare bolts nuts, grease take care a single car. There are 2 variations in measurement for the outer diameter of each of the six whole. They are either 12mm or 14mm. If your drive shaft has been upgraded or replaced with the newer drive shaft, then you mighty need to order the 14mm diameter.