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Old 08-03-2017, 04:29 PM   #10
theastronaut
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Join Date: May 2011
Location: Anderson SC
Posts: 3,908
Re: '66 C10 Trailing Arm Swap onto '89 R30/C30?

Quote:
Originally Posted by bluex View Post
John you're welcome to look at mine at the next club event or if you are up in my neck of the woods one day to see what all is involved. I have the porterbuilt kit, which I know will be different than adapting stock components. A stock 67-72 crossmember wont fit but I'm sure with your skills you could make it work no problem. If you wanted to save time you could always call up CPP and order their crossmember only for about $150 I believe. Last time I looked at porters website they no longer listed the trailing arm option for squares any longer. You could also order one of their "modular" crossmembers and build your own frame brackets which is what they wound up giving me to get mine to work and then I still had to modify it some.
Thanks for the offer!! I'll probably end up making our own crossmember if we decide to convert it to trailing arms. Still in the planning stages.



Quote:
Originally Posted by Big Port Jimmy 6 View Post
John consider using an 88-98 rear end. They are a tick wider than a square rear end and are way easier find good ratios in. Mine is a 3.42. Jay
We'll be using a F-body T56 so a shorter gear might be more appropriate since 6th gear is .50:1 ratio. Maybe 4:10 or 4.56 depending on the tire size we end up with.
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