Gentlemen, I emailed the following company about the c-clips, but it might be better if those doing the build contact them. They don't sell direct to the public, but they build most of the rear ends for drag racing. Here's the info... Moser Engineering, 102 Performance DR., Portland IN, 47371 or: info@MoserEngineering.com .....if they can't help, I don't know who can. Check out their website www.moserengineering.com .......