hey everyone,

i have a 74 260z in which i seem to have torn up the differential. I read on ebay that a late 90's subaru legacy has a 3.90 that will supposedly fit into a 240. Does anyone know if this is tru or if any fabrication would have to be done? And if it will fit in a 240 it would fit in my 260 right?

thanks for your help.

The subaru's generally use the r160 or r180 differential.

I have heard that some of the higher output models (wrx) used an r200. (read bigbucks)

I have never heard of anyone actually attempting it. you would be breaking new ground. please document the conversion.

Thanx

Ahmed

Any new info on this? There's a guy selling one who says the WRX wagon 160 dif is a 410 LSD direct drop in. No fabricating required, uses factory axels/driveshaft ect.

I haven't seen/heard this anywhere else, so i want to make shure before i pick it up.

Thanks,

Jay

Datsun 510's came with R160s from same factory as the R180s and R200s in the Zs. I hear lots of the 510 guys do the swap with the Subaru diff and I believe it can be done with the Z, but don't know the details. Try a search on this site. I think the R160 is not a strong as either the 180 or 200. I too would like to see and hear about the results if you do the swap. Lots of Subies in my area, not usually the high end models tho. Gary

I did a tun of searching on Hybridz last night. It seems the rear will work in a Z, but you need the stub axels out of a R160 510 rear to make it work (the length/spline is slightly off with the R180 axels).

The diff plate the driveshaft ataches to also needs to be swaped to the R180 one (must be done by a rear shop because of the new crush collar needed/correct torq specs for the pinion pre-load, ect).

There is wide debate how strong it is though. Some say they have used it for 2+ years autocrossing with great results, others say they blew it up in a matter of months. So there's no clear consensus about it.

I think i'm just going to save for the R200. There is wide speculation on those as well (which years are better/work, what peices you need for the swap, ect). It's very confusing.

the r160 ring gear has a smaller diameter, which is technically not ideal for high torque and high horsepower applications. my friend dropped the suby r160 into his '70 and he has had no problems. he has been running an L28 with some basic bolt-on mods