Draker Posted March 22, 2016 Report Share Posted March 22, 2016 Can you swap a 510 sedan 3.9 ring gear and pinion into a Subie R160 3.7 differential? Or should I say... does it bolt in? Quote Link to comment
Lockleaf Posted March 23, 2016 Report Share Posted March 23, 2016 If it doesn't, it's very easy to find Subarus with 3.9s and 4.11s. But I'm fairly sure they interchange. Quote Link to comment
Draker Posted March 23, 2016 Author Report Share Posted March 23, 2016 If it doesn't, it's very easy to find Subarus with 3.9s and 4.11s. But I'm fairly sure they interchange. yeah, I'm looking for the elusive 3.9 clsd ideally.. but if I can piece it together, why not I suppose. 1 Quote Link to comment
datzenmike Posted March 23, 2016 Report Share Posted March 23, 2016 I think they will, both are built by Fuji Heavy Industries. Nissan and Hyundai have both owned part of Fuji in the past as well as Toyota, maybe more. This is why the early '80 Toyota 4x4 four piston calipers will bolt right onto the early Z car. 1 Quote Link to comment
Draker Posted March 23, 2016 Author Report Share Posted March 23, 2016 I've got a line on a 3.7 clsd. I'm going to go hunting for a 3.9 though. They exist.. but hard to say if any of the yards around here would have one. If not.. I might pickup the 3.7 and try to swap. Quote Link to comment
Stoffregen Motorsports Posted March 23, 2016 Report Share Posted March 23, 2016 Better to use the LSD carrier in a diff that has the ratio you want. Then you don't have to reset the pinion depth. Pretty sure they are interchangeable though the stub splines are different on some Subie models. Quote Link to comment
Lockleaf Posted March 23, 2016 Report Share Posted March 23, 2016 ^^^ That is what i did when I swapped gears out in the rear diff of my svx. I retained the svx stock lsd carrier and installed it in to the new diff housing. I didn't think about that until Stoff mentioned it, but I agree. Quote Link to comment
hosestop@msn.com Posted March 25, 2016 Report Share Posted March 25, 2016 I think my 2003 subie 444 ratio has different ring gear bolts I was going to have a gear guy swap and I think he said my old 3.90 ring only may have to be re-drilled to work not sure ? Quote Link to comment
Draker Posted March 25, 2016 Author Report Share Posted March 25, 2016 I think my 2003 subie 444 ratio has different ring gear bolts I was going to have a gear guy swap and I think he said my old 3.90 ring only may have to be re-drilled to work not sure ? Interesting! The 2003 would have been vlsd right? In the next few days or weeks I'm going to hit the yards... going hunting. I've found a 3.7 clsd.. but looking for the 3.9. If none of that works.. I might look at the swap. Quote Link to comment
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