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620/720 KA24 Motor Mount brackets


]2eDeYe

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  • 1 year later...
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First off I want to thank all you guys that have purchased mounts over the years. 
You have helped me get better at fabrication and build better Datsuns for myself than I would been able to have otherwise. 
 

I have a couple PSAs: one regarding my 620 crossmember and another about the aftermarket L20b rubber engine mounts.

 

First the transmission crossmember.
If you have one of my 620 transmission crossmembers from before Nov 2025 and the longer 240sx KA or SR transmission
Pease check the clearance between the rear of the transmission and the front of the crossmember. 
It is tight there and could contact the transmission. 
i recommend grinding the front of the crossmember back to clear 3/8" to insure there will be no contact if the rubber mount fails or sags over time. 

Here is the issue at the crossmember with the longer transmissions.

image.thumb.jpeg.3068f2a7cb6fe2d05ea745beb82e28b3.jpeg

Here is how I am modifying the last few crossmembers I have in left stock.
I will have a redesigned crossmember once they are gone. 

image.thumb.jpeg.abd375680cfeae5d366e405c7d09dadf.jpeg

A huge thanks  Ernie Ruiz and Carlos Ortiz for helping with this issue, you guys rock. 

Again this is only for the longer 240sx KA or SR transmission

----

Regarding the rubber engine mounts. It has come up a couple times where one of the mounts (RH) will tear. 
It seems that some mfgs may have decided to cut corners and just ship the shorter early L18 RH mounts, as they look visually the same as the later L20b ones.
They are not. 
I am recommending just purchasing 2 LH mounts as they are obviously designed for the L20b and are harder to cut corners on. 

Torn RH mount.

image.thumb.jpeg.4c3707fe969c91757d9cd7031353f365.jpega

LH Mount 

image.thumb.png.46b94b65a81775fd94c4bed313c98a34.png

LH Mount on RH 

lhmountonrh.thumb.jpg.469eeb7178afe14f9fae99b87289887c.jpg

I want to than Carlos Ortiz for letting me know and helping think of a solution and Kyle Philips for trying it out and the pics. 


Apologies to anyone these issues have affected.
As always, please contact me if you are having any problems with any parts I make.
I want them to work well and keep these trucks on the road, not be the reason they are not. 

If you have any questions regarding anything in this post please post up or PM me.

Thanks again to everyone that has bought mounts from me. 

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