1970 Swinger Build Thread (PURISTS BEWARE)

Mason Coughlin said
Do you think the 8 3/4 will be getting towards its limit? I don't plan on doing much of any drag racing with the car, but will be doing some auto cross events. The overall goal is a pro touring build with 17's and sticky street tires, but nothing near the traction of slicks. I'm leaning towards the U.S. Mag Rambler wheeler. Kinda some vintage spoke look mixed with the newer big lip look. I like it a lot.

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Funny thing with the Vette IRS.... The guy I purchased the C5 stuff from was the owner of a 1966 Stingray that he has been working on for 18 years. Kinda one of those projects that will never get finished, but he would never sell it... He was desperately trying to sell me the C6 rear suspension he had as well as his Winters quick change center section. I just really don't want to do anything that extensive with the rear end. At least not now. I was actually even planning on keeping the leaf springs and using some ESPO 1" drop springs with Bilsteins.

Speaking of Bilsteins, I bought the set of 4 from PST a while back but won't be using the fronts now and instead will be going with Qa1 coilovers, possibly their C5 kit, but I need to start working on building the K frame before I will know if the C5 coilovers will be long enough or not. So if anyone is interested in front Bilstein shocks, let me know because I have some brand new in the box.

in stock 8.75 form with sticky tires, you'll be pushing it. Upgrade it with stronger axles and strengthen the housing with some bracing and you'll be okay. If you're gonna be doing some serious time on a autocross, I'd look into an adjustable limited slip. I've got some information I can pass on from Ron Sutton to help you chose if you'd like.

I'd rethink the C6 rear setup, that's truly what makes the vette handle like it does. Like i said above, you're already fighting a track width issue with the front being so much wider. Factory, the dodge dart already has a not so ideal front to rear track width ratio issue. Factory darts are wider in the front track width wise than the rear. Now some of this can be adjusted by playing with backspacing and tire width but it will be much worse with the C5/6 front. May as well get the C6 rear and cut/flare the rear quarters to fit the width.