My lower unit is cracked around the propeller. The housing itself is missing a small chunk and has a crack that has started expanding (sorry no pic at the moment, boat is at my parents place). I'm pretty sure there is no way to repair it and started looking for a used replacement today.
The boat is a 97 Chris Craft 170 concept, 17'. Motor is the 4.3 Liter Vortec V6. Outdrive setup Volvo Penta SX Cobra 3868389 1.66 t0810400 are the numbers on the plate.
I have found a complete stern drive unit, ie upper/lower off a Four Winns with a 5.0 v8. I think it may be a 1.51 ratio, but I could be wrong. Here are the numbers on the tag for that unit 3868404, 4111537059, can't make out the ratio on the tag. It says SX-C1.
Will that complete drive unit work for me? What if it is indeed a lower gear ratio, will the 1.51 vs 1.66 make that big of a difference in performance? I just gave the boat a tune up and it runs great right now other than some noise from the lower unit (which I found/heard last time I took it out) and haven't been out since. Is there a way to just change the gears out and use my gears?
Just had the transom rebuilt on this boat and again did the tune up, but now the damn lower unit is the problem with a crack in the housing.
The boat is a 97 Chris Craft 170 concept, 17'. Motor is the 4.3 Liter Vortec V6. Outdrive setup Volvo Penta SX Cobra 3868389 1.66 t0810400 are the numbers on the plate.
I have found a complete stern drive unit, ie upper/lower off a Four Winns with a 5.0 v8. I think it may be a 1.51 ratio, but I could be wrong. Here are the numbers on the tag for that unit 3868404, 4111537059, can't make out the ratio on the tag. It says SX-C1.
Will that complete drive unit work for me? What if it is indeed a lower gear ratio, will the 1.51 vs 1.66 make that big of a difference in performance? I just gave the boat a tune up and it runs great right now other than some noise from the lower unit (which I found/heard last time I took it out) and haven't been out since. Is there a way to just change the gears out and use my gears?
Just had the transom rebuilt on this boat and again did the tune up, but now the damn lower unit is the problem with a crack in the housing.