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Mod | | | Forums66 Topics128,127 Posts1,056,679 Members48,452 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
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on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Apr 2012 Posts: 158 Shop Shark | | Shop Shark Joined: Apr 2012 Posts: 158 | Looking for a 1970 C30 transmission X member in the parts wanted section....Had a comeback for a C20....Does anyone know if the 20 & 30 share the same transmission X member? | | | | | Joined: Jun 2005 Posts: 168 'Bolter | | 'Bolter Joined: Jun 2005 Posts: 168 | This might not be relevant to you, but I successfully swapped an '85 c30 crossmember on to my '63 c10 frame, and I only had two holes that didn't line up. Squarebody (73-91) c30 crossmembers should work for you unless you are trying to stay original.
Liquidated my projects
Now looking for a decent '47-'55.1 3100, 3600, or 3800
| | | | | Joined: Apr 2012 Posts: 158 Shop Shark | | Shop Shark Joined: Apr 2012 Posts: 158 | Originality is not an issue..My truck is an in process restoration with intention of using it when I have a chore for a 1 ton mason's dump truck.....This transmission X member is factory riveted in, so it will require some effort for someone to remove it from a doner vehicle..probably why nobody is chomping at the bit to sell me one... The frame & undercarriage of this truck has no rust, however the X member has rust holes that I can't explain, other than dirt getting packed in there acting as a sponge for 50 years...c20 & c30 share a lot of mechanical/suspension parts I just wanted a confirmed answer if the transmission X members are the same.....Thanks for your comeback...will keep it in mind..... | | | | | Joined: Jun 2005 Posts: 168 'Bolter | | 'Bolter Joined: Jun 2005 Posts: 168 | Wow, I completely misread your post. I thought you were looking for the front suspension crossmember for some reason. My bad.
Liquidated my projects
Now looking for a decent '47-'55.1 3100, 3600, or 3800
| | | | | Joined: Feb 2003 Posts: 1,377 'Bolter | | 'Bolter Joined: Feb 2003 Posts: 1,377 | I would think it would be the same as a C20 and I think the 6 cylinder manual trans C10s also had a similar one. | | | | | Joined: Apr 2012 Posts: 158 Shop Shark | | Shop Shark Joined: Apr 2012 Posts: 158 | Have a 'wanted' ad, in 'truck parts wanted' Thanks | | |
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