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W126 Subframe Swap?
300SD81 Offline
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#1
W126 Subframe Swap?
Does anyone know if the later W126 subframe bolts up to an earlier model? Haven't had many chances to get out to the yards lately to check.
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11-12-2012, 03:44 PM
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Simpler=Better Offline
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#2
RE: W126 Subframe Swap?
I want to say that the W123 and W126 subframes are the same, and the 126 subbies are aluminium but I have no proof to back that up.
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11-12-2012, 03:49 PM
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aaa Offline
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#3
RE: W126 Subframe Swap?
The v8 126 subframes had trailing arms made out some sort of alloy. They look pretty similar 123 to 126 and 126 gen 1 to gen 2. Of course gen 2 126 would have a bigger drive shaft though.
11-12-2012, 09:40 PM
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DeliveryValve Offline
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#4
RE: W126 Subframe Swap?
The w123 and 126 subframe do not interchange. The 126 is wider. The 2nd Gen and 1st Gen subframes share the same front mounting. The 1st Gen rear mounting is located in the middle, while the 2nd Gen rear mount was moved to the left a few inches. I do think you can relocate you bolt holes to make it work.


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11-14-2012, 07:16 PM
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SurfRodder Offline
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#5
RE: W126 Subframe Swap?
(11-14-2012, 07:16 PM)DeliveryValve Wrote: The w123 and 126 subframe do not interchange. The 126 is wider. The 2nd Gen and 1st Gen subframes share the same front mounting. The 1st Gen rear mounting is located in the middle, while the 2nd Gen rear mount was moved to the left a few inches. I do think you can relocate you bolt holes to make it work.

Thanks for this... I have often wondered how different the 126's were from the 123's...Ive pulled a few diffs from early 126s to get lower gears/check for LSDs and knew they were comparable, but now I know the particulars... I'd bet it could be done with enought time, thought and money(what isn't, eh?)... It'd be nice to retrofit a later 126 rear into the 123.
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11-20-2012, 01:54 AM
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