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Old 03-03-2017, 03:59 PM   #5
69gmcc10
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Join Date: May 2011
Location: Missoula, MT
Posts: 934
Re: '72 Leafs to trailing arm conversions

the c20 has the same dimensions, but uses a thicker steel for strength. There is also a reinforcement insert in the frame over the area of the axle and a reinforcement plate on the top of the trailing arms I have seen on some c20s. The upper shock crossmember I use in my conversion came from a c20, so from what I have done I personally don't see any conversion issues between the 2. Hopefully someone else can chime in with some info if they have info to the contrary.
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