# R180 Nissan / Subaru rearend 3.90 ratio **URL:** \ **Category:** Classifieds\ **Created:** [April 17, 2013, 12:40pm UTC](https://forums.speedlife.net/t/r180-nissan-subaru-rearend-3-90-ratio/230049 "2013-04-17T12:40:30Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![robftw](https://avatars.discourse-cdn.com/v4/letter/r/6bbea6/32.png) [@robftw](https://forums.speedlife.net/u/robftw)\ **Post date:** [April 17, 2013, 12:40pm UTC](https://forums.speedlife.net/t/r180-nissan-subaru-rearend-3-90-ratio/230049/1 "2013-04-17T12:40:30Z")
Yard sent me the wrong part. Won’t let me return it because they claim it’s what I ordered when I’m 100% certain it’s not. The stock number and my receipt don’t even match up. 3.90 rear end open diff. 25 spline stub axles. 67k miles Will text pics 716-445-0883 ---
**Author:** ![focusinprogress](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/focusinprogress/32/7227_2.png) [@focusinprogress](https://forums.speedlife.net/u/focusinprogress)\ **Post date:** [April 17, 2013, 1:30pm UTC](https://forums.speedlife.net/t/r180-nissan-subaru-rearend-3-90-ratio/230049/2 "2013-04-17T13:30:38Z")
is this one of the ones you mentioned possibly working on my caterham/locost build in my thread? ---
**Author:** ![robftw](https://avatars.discourse-cdn.com/v4/letter/r/6bbea6/32.png) [@robftw](https://forums.speedlife.net/u/robftw)\ **Post date:** [April 17, 2013, 1:45pm UTC](https://forums.speedlife.net/t/r180-nissan-subaru-rearend-3-90-ratio/230049/3 "2013-04-17T13:45:51Z")
Yes. Its the smaller (lighter) of the two. And in perfect working order Its just the wrong unit for my 280z. Heres a pic, i used it to explain to the yard what they did. You can see the size difference. The one youd want is on the right. [ATTACH=CONFIG]23522[/ATTACH] ---
**Author:** ![focusinprogress](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/focusinprogress/32/7227_2.png) [@focusinprogress](https://forums.speedlife.net/u/focusinprogress)\ **Post date:** [April 17, 2013, 8:38pm UTC](https://forums.speedlife.net/t/r180-nissan-subaru-rearend-3-90-ratio/230049/4 "2013-04-17T20:38:10Z")
hmmm. I’d need a complete subframe for it and some axles/brakes… what are you into it for price-wise? ---
**Author:** ![robftw](https://avatars.discourse-cdn.com/v4/letter/r/6bbea6/32.png) [@robftw](https://forums.speedlife.net/u/robftw)\ **Post date:** [April 18, 2013, 1:59am UTC](https://forums.speedlife.net/t/r180-nissan-subaru-rearend-3-90-ratio/230049/5 "2013-04-18T01:59:23Z")
I paid 200, I’d like to get as close to that as possible. I opened it up last night and checked the ring gears. Reads 39:11 this is a 3.545 NOT a 3.90 as advertised These dumbfucks couldnt even send me the correct ratio, I’m extremely pissed off. ---
**Author:** ![robftw](https://avatars.discourse-cdn.com/v4/letter/r/6bbea6/32.png) [@robftw](https://forums.speedlife.net/u/robftw)\ **Post date:** [April 18, 2013, 11:07am UTC](https://forums.speedlife.net/t/r180-nissan-subaru-rearend-3-90-ratio/230049/6 "2013-04-18T11:07:51Z")
Btw, I’m almost positive you can use any subframe from a 70-77 datsun Z however you will need 240z stub shafts and probably will have to get custom axles made . Length. They make big brake kits too. ---
**Author:** ![2TurboZ](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/2turboz/32/7577_2.png) [@2TurboZ](https://forums.speedlife.net/u/2TurboZ)\ **Post date:** [April 18, 2013, 11:40am UTC](https://forums.speedlife.net/t/r180-nissan-subaru-rearend-3-90-ratio/230049/7 "2013-04-18T11:40:28Z")
Sucks this place screwed you and wont own it.