If looking up the two slaves whatone needs to find would be the cubic centimeter capacity of each. I'm pretty sure the Pressure created by the stock master would suffice for either. But a simple test to see how far the rod extends from one pump would prolly be just as good.
If the capacity of the new one is greater than the old one it may be possible to relocate the new one so the extended rod length would work.
Big JIm <img src="/forums/images/graemlins/pfft.gif" alt="" />

professional bovine relocation specialist