jakeoster Posted June 23, 2010 Share Posted June 23, 2010 (edited) I have a transmission mount for a 1975 280z for an RB25 transmission which is currently in my wrecked 280z. I recently purchased a 1972 240z with the insurance money I received for being rear ended and was wondering if I could somehow modify it to work in the 240z so I don't have to buy a brand new one. Or if someone can post a picture of a 72' 240z mount then what would be awesome too. Thanks. I am assuming that the engine mounts should be the same regardless if it is a 72' or 75'. Edited June 23, 2010 by jakeoster Quote Link to comment Share on other sites More sharing options...
RB26powered74zcar Posted June 23, 2010 Share Posted June 23, 2010 I thought after the change made during the very early 240z's trans mount attachment style, they were all the same after that? Have you looked yet to see if it has the late style (horizontal bolts), or the early (vertical) style mount? Quote Link to comment Share on other sites More sharing options...
erehemantresni Posted June 23, 2010 Share Posted June 23, 2010 The trans mounts are the same. The floor pan changed. Quote Link to comment Share on other sites More sharing options...
jakeoster Posted June 23, 2010 Author Share Posted June 23, 2010 (edited) My 72' has got those ears for mounting the transmission similar to the 75' that I need to cut off to fit the RB25 transmission. But the McKinney trans mount straddles the transmission tunnel and you bolt it through the floor of the Z if i remember correctly. Im not sure if that area is the same on the 240z and will allow the mount to seat correctly. Thats what I am concerned about. Thanks. Heres a picture of my mount on the 280z for reference. Edited June 23, 2010 by jakeoster Quote Link to comment Share on other sites More sharing options...
260zShooter Posted June 23, 2010 Share Posted June 23, 2010 The 75 has a wider tunnel than the 72. There is a bump out on the driver side tunnel. The factory trans mount on the 72 has vert bolt holes while the 75 has the larger horizontal bolt mounts. The 75 Mckinney x member may be too wide for the 72. If you end up having to fab or buy a new x member, let me know. I'm needing one like your 75. Joe Quote Link to comment Share on other sites More sharing options...
linluv84 Posted June 23, 2010 Share Posted June 23, 2010 Just give Mac @ McKinney a call, he can clear up everything for you... Quote Link to comment Share on other sites More sharing options...
fast-datsun Posted June 24, 2010 Share Posted June 24, 2010 There are actually 3 types of crossemmbers 69-73 early late 73-76 and 77 up.... we can sell you just the trans crossmember(mount) if that what you need Quote Link to comment Share on other sites More sharing options...
jakeoster Posted July 13, 2010 Author Share Posted July 13, 2010 Went ahead and just ordered a 240 mount. Hopefully will get this RB in soon. I am truly missing it haha. Quote Link to comment Share on other sites More sharing options...
Tanuki Posted September 8, 2010 Share Posted September 8, 2010 ^yeah the one I have for my z is totally different. BUT it also doesnt work. So we are figuring that all out right now. Quote Link to comment Share on other sites More sharing options...
240Z_Master Posted September 17, 2010 Share Posted September 17, 2010 240Z's have two different tranny mounts... On the earlier 240Z's (Series 1) the tranny bolts way higher into the transmission tunnel than the later 240Z's (that were Series 2)... Until Nissan changed their design with the transmissions... I've went over this already somewhere... I don't really know how a 69-73 mount would work in all chassis... either that or my S1 240Z was screwed up Quote Link to comment Share on other sites More sharing options...
Tanuki Posted September 18, 2010 Share Posted September 18, 2010 240Z's have two different tranny mounts... On the earlier 240Z's (Series 1) the tranny bolts way higher into the transmission tunnel than the later 240Z's (that were Series 2)... Until Nissan changed their design with the transmissions... I've went over this already somewhere... I don't really know how a 69-73 mount would work in all chassis... either that or my S1 240Z was screwed up Not sure. Either that or they told me the wrong direction for the motor mounts? haha Quote Link to comment Share on other sites More sharing options...
fast-datsun Posted September 18, 2010 Share Posted September 18, 2010 Call US we will help you there are actually 6 different if you count the AUTO trans models. 1973 had 3 different trans crossmembers... mack Quote Link to comment Share on other sites More sharing options...
240Z_Master Posted September 19, 2010 Share Posted September 19, 2010 Call US we will help you there are actually 6 different if you count the AUTO trans models. 1973 had 3 different trans crossmembers... mack You're right on about that (fkn Datsuns!) Quote Link to comment Share on other sites More sharing options...
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