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I posted this in my build page, but haven't got a definitive answer. ..


What size and thread pitch are the bolts suppose to be that hold the transmission crossmember onto the transmission tunnel. There are four of them. They look to be size M10, but I can't seem to find the right thread. It's not helping that the bolt holes are a little rusted.


Anyone know what size and thread pitch for sure?

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Those I believe are the cross member to transmission mount bolts although M8 X 125 are also listed on some 510s.


I get...  08110-82010  M8 X 1.25 for the cross member to body


08114-02510 M10 X 1.25 for trans mount bolts.

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710's use smaller bolts for the tranny X-member than 510's do ... maybe the 8mm is for 610/710s?


Looking closer I see different X members for 3 and 4 speeds possibly the smaller were used on the 3 speed cross member?

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