That's a great post, thanks.

I'm not really concerned with the inner fender mods. I am more than willing to cut it up and make it fit. What concerns me is the hitting the outer fender. Definitely will not be flaring the fenders.

Running some quick calcs it looks like i would gain 1/4" - 1/2" at best if i'm +2 on camber. That may be enough...

I still think 5.75" BS is wrong on a 69. I'll keep you guys updated after alignment if you care to know.

yes keep us updated! I'm curious, I did measure an 18x10 inch rim (test fit on the car) and It looks like a 6.00 BS would be perfect, I run a 9.5 rim and I have a 5.50BS and it fits great, ok let us know

re
 

Id love to hear from brett the vendor. They never seem to give anything outside the vague response "make it fit" modify the fenders.... if hundreds of other people have made it work there should be plenty of info. Detroit Speed gives exact tire/wheel sizes for their subframe. For what the tru turn system cost it would be nice to get more guidance on wheel combos and fender modifacation requirements.

Its close to impossible to have information to cover every single situation out there. DSE does give a recommendation cause the base frame is under their control.

Ridetech sells parts that you install on your frame which is mounted to your body.

Who is to be certain what has been changed or modified on your particular car.

I had a customer bring his car in to have the wheels fitted. At some point in its life the subframe and supports were repaired and off by almost and inch. Now that might not sound like a lot to you but it is when you are trying to stuff the biggest tire you could.

I say this because you happen to be the first that had issue on a 69 with 5 3/4" backspace wheels. I'd like to revisit this thread after you get a proper wheel alignment on the car. After that then I'd like to take a closer look at the arms and the mounting points.

I still haven't got mine aligned yet cause I've moved and been too busy. But like I said earlier, the drivers side rubs during a semi hard turn and it only has 7x17 wheels. Can't remember the BS tho, it's been WAY too long since I got them, but they ain't deep.
Anxiously awaiting info from y'all! LoL!

My tru-turn experience
 

I installed the complete Ridetech coilover and tru-turn system on my '69. Prior to ordering new wheels and selling my old wheel & tires I did a test fit - (coilovers temporarily not installed) - with a 275/35/18 on 18x10 wheel with 5.75 B.S. (This wheel and tire was being used on the back of my car w/ a small spacer). I set the camber close to zero with an angle gauge. I immediately discovered that combination would not work at all unless I wanted a very high ride height - not desirable. The tire touched the top, horizontal, outer part of the fender at any where close to full lock. The fenders would have to be flared to provide clearance - not desirable. I then ordered 18x9" wheels with 5.75 B.S. and the setup looks OK with the 275 tire. My Camber is set to -0.5 deg and is about all I want to go for good tire wear. I loaned the 18x9 wheel/ tires to 2 friends that were also in the process of installing the tru-turn on their '69 Camaros. After testing, they both went with 18x9 with 6" B.S. They are able to run their Camaros about 1/4" lower than my car and are happy with that combination. A few months ago I tried lowering my car that low but then heard rubbing during parking maneuvers and discovered the paint chipped off the fender where the tire was making contact. I raised it back up 1/4" and that is as low as it can go. Also, both sides of the car have very close to the same clearance, no more than 1/8" difference.

Recently Ridetech built that high end '69 for Goodguys and used an 18x10 on the front but I have no idea how they made it fit, or if they run lots of negative camber, or how much backspacing they used. Will they be able to leave it at that height and really drive it on city streets, parking lots, fields, etc?

Gary

Lets get serious. If you are buying the tru turn system with all ride tech suspension components it should not be hard to recommend tire size and BS. Obviously if you have a bent frame nothing is going to work and that's not on the vendor.

For what that system costs you should be able to clearly demonstrate what's required. An ambigous statement about fender modification and backspacing is a bit of a cop out. My frame is straight and has been aligned on the body. With a suggested 1.5" additional fender clearance over the 67/68 and an additional 0.5" of BS I should not be that close.

Im really not trying to flame I just wish I had acess to this info before I spent 3bags. Backspacing info and installation notes are few and far between on this setup. I will definitely keep you posted. Hopefully I'm over reacting and an alignment will give me clearance.

Again, that's why I always tell people. All cars are different. Measure your space carefully and adjust what you need as far as size and back spacing to make it fit.

you really need more camber, I drive mine daily (22.000 miles this year) and I have about -1.5 on my camber in order to have an even tire wear, with less camber the alignment looks good but the car still feathers(and wears) the outside edge more so I dialed in camber till I had even wear

hope that helps

That is good info. Thanks,

Gary