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Still looking for long neck diff 3:64:1

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Well, I don't have one.


Try Gordon, in northern Oregon.

He goes by Gracer here.


Or swap your rear subframe and go shortneck.  Most of the kids did that back in the 70's.




"I learn best through painful, expensive experience, so I feel like I've gotten my money's worth." MattL

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You could have one built. It won't be cheap, but the gear sizes are the same for all diffs up through the 4 cylinder E36 cars. If you can find a diff builder familiar with the longnecks, you could swap in any gear ratio you want.

1967 1600-2 - M42 - 1521145          Follow my project at www.TX02.blogspot.com          E30 DD Project Blog


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Hello Nick,tell me what you really think. The original owner seized the stock 1800 motor, then he installed a 2002ti motor with all 1800 motors external components like( intake and exhaust,) and I installed a lynks single side draft and a Top End header. (Less restriction).  At the same time he installed a 320i automatic 3 speed. The original trans has disappeared. Though I have the origanal 1800 block(seized). Wasn't part of origanal purchase of vehicle. But managed find it baried in the hanger!   Long\short  this girl has short legs.   Was my thought that a diff closer to a 320i would drop the RPM enough to stop  my whinsing. Thanks for you opinion.  Its a damb eighteenfrankin. Thanks.LMK


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If you do a lot of motorway cruising and you only have the 3 speed auto then may be it's a good ratio. Don't forget the NK has larger wheels than an 02 or an e21 and it makes quite a bit of difference. No idea how the 4hp22 compares in size to the old 3 speed, but that box with a 4.11 would be a great combination in an NK.  

Edited by NickVyse
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Double check the 4th gear ratio on the 4hp22 box - it's described as an over drive automatic so I have always (naturally) assumed that 4th is an OD ratio. If so then yes, it's a perfect combo in an NK and similar to a 5 speed OD and a 3.9:1 ratio in an 02 with its smaller wheels. 


Here's my NK cruising at 150kph/about 93mph (1600 speedo reads slightly slow as it's calibrated for an even shorter rear end) with a 5 speed OD and 4.11:1 back end and 195x70 14" tyres. 


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