The second factor, convertin (otherwise known as serum prothrombin conversion accelerator, Spca, stable factor, co-thromboplastin and factor VII), is found in serum and arises from a relatively inert precursor in the plasma (proconvertin or pro-Spca) when brought in contact with thromboplastin and calcium.
Parts: $155 - $304. The average cost for a strut/shock absorber replacement-front is between $315 to $507. Labor costs are estimated between $160 to $203 while parts are priced between $155 to $304.Get a personalized estimate based on your location and specific car.he average cost for a strut/shock absorber replacement-front is between $315 to $507.
1 On average, the price of these shock absorbers can be anywhere from $40 to as much as $120 for the part alone. 2  This would not include the price of labor. 3  Since each car will have four shock absorbers, a do-it-yourself job could cost upwards of $400. This would not include the price of labor. 2  Since each car will have four shock absorbers, a do-it-yourself job could cost upwards of $400. 3  To have a mechanic perform the job, the charge could be anywhere from $300 to as much as $900 depending on the number of absorbers that have to be replaced.