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Old 05-26-2018, 09:22 PM   #75
John V
No more BMWs
 
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Join Date: Apr 2005
Carmudgeonly Ride: Ram, MS3, CX-5, RX-8
Location: Glenwood, MD
Posts: 14,753
Time to make the bushings for the front of the final drive. Bit of a weird configuration, so I made the bushing as two pieces, a complex shape that presses into the front ears of the diff, and a disc to serve as the lower isolator. The Ronin guys sent me a link to a guy that makes something like this, but I thought the version I came up with was a little better designed and didn't rely solely on the press-fit to hold the diff in.



Sorry the pics are so dark.



With the front cradle mocked up. Everything fits surprisingly well. The Ronin guys did a really nice job with the front piece. I think just a little minor grinding will be necessary to tighten up the gaps for a nice weld. I have a bit more work to do before this is ready to weld but it's mostly just prep.



This is a shot of the rear bushings I made, fitted to the Ronin plate, bolted to the RX-8 subframe.



This is the front mount, with the bottom isolator bushing installed. You can see the gap from the Ronin front plate to the subframe is just a bit on the large side, probably okay for a MIG weld but a bit too large for a TIG.

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