Earthforce EF3 B200 - Information Request

[Jimz2]

Hello all! My name is Jim. I recently purchased a1999 Earthforce EF3 machine with 1200 hrs. The seller made me aware that the machine's hydro drive was weak before I purchased it. All the same problems as others who own these type machines. Slows down, weak power as it heats up. I am in the process of removing the main Bondial Pavesi pump and am going to have it either rebuilt or purchase a rebuilt one, as soon as I can get it out of the machine. The 2 main mounting bolts are very inaccessable and I am hoping that I can get to them with a 22mm crowsfoot wrench that I ordered from craftsman. My question today is: from reading others posts on here, (I have been reading 2 other members posts, gjb012 and SSdoxie, and both of you are very knowledgeable on these machines). I read on your posts about hooking an additional oil cooler inline for better cooling of the hydro fluid. I have located the 2 lines out of the existing cooler under the seat and it has 2 lines, one about 1 1/8 going back to reservoir, and the other about 5/8" going up towards the front loader. They are both coming out of the same block on the cooler. I would like to know if anyone has installed any auxilliary coolers on their machines and where would I tap in to the lines?? Would it be just a matter of cutting the line and attaching the cooler hoses with barbed fittings and hose clamps? 1 line to aux cooler intake and 1 line back to cut hose from aux cooler outflow? Although I think that the logical choice of hose to tap into is the larger hose going back to the reservoir, I am scared to tap into the larger of the 2 lines, the one that goes back to reservoir, as I fear the pressure from reducing down from the 1 1/8 hose to the 11/16 aux cooler size hose may be too much, and also, I worry about there not being enough flow volume from this smaller sized hose causing a restriction of flow back to the reservoir. Any guidance anyone can give me on this would truly be much appreciated. Jim