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I've spent sevaral evenings working on the rearend of my stock "79 vette. Not lots of power but a great amount of moving parts that need regular attention. When "IRS" was invented for cars, it was because the terribly uneven roads that cars were driven on needed them to keep all the tires on the ground for better traction. With the smooth modern roads of today independent rear suspensions aren't needed as much as they used to be. I see modern cars with solid rear axles handle extremely well. I believe that if vettes had solid rear axles today, they would still handle with world class cars. I know that the work I am doing now would be a lot less expensive if it were a solid axle; probably wouldn't have to be doing it at all. Having said all this, we have cars with "IRS" and, for the most part, love them. For the kind of driving I do, a solid rear axle would do everything I would ever ask of the car and be less expensive to maintain. I think it would definately be something to consider. With today's technology, suspension components could be created to give the handling the car deserves and the rock solid dependability and ease of maintenaince owners would like to have. I love my vette just the way it is, and if it had a solid rear axle I could like it just as much. For the guys that want to make it different, go for it, and for the guys that like it just the way it is, I support your right to "have it your way" too! Without people with dreams of making it different, we probably would never have had a corvette in the first place. Which ever way you choose to go is the right way; in my opinion!
Bernie: I agree with you 100%, and that's a very good observation about the roads, etc.
My need for a soild rear axle is I will be racing it at the strip and I need the reliability of not having all those u-joints twirling around. At the strip, the KISS principle applies and the simpler the design the better.
I know the Vette is designed as a "sports car" and was made to go around corners as well as in a straight line. The earlier C2 Vettes had a solid axle and the IRS was a dramatic improvement back then. IRS is still popular today and even some modern cars (the Mustang Cobra for one) offer IRS.
I'm not knocking anyone staying with the IRS. I just want to change what I have to make it more suitable for my needs and useage.
So why can't we just cut and weld and bolt in a solid axle. People say it definately not a do it yourself project but why not. Isn't there enough adjustabiliy in the heim joints of a 4 link to get ther rerarend right where you want it. Can't you just take the time and mock it up and run some strings to get things square parallel and straight. Make some brackets and weld some shat. I say we get a few of the best minds on the forum and send them up to norvals and they can design us a nice little kit for a solid axle swap, i'll even let them take my car for the prototype.
JD: Cutting and welding are NOT "simple" things for a backyard mechanic to undertake. The rear end is going to be under a tremendous amount of stress, and if it's not in just right, it could be a VERY dangerous situation when blasting down a dragstrip. That why the hot rod shops charge the big $$$$ to do the modification. If it is screwed up and people get hurt, they are gonna be facing a sizeable lawsuit.
We aren't talking about changing the rear end for "coolness factor",
we are talking about changing it so that it can take considerable more abuse than the present version does. Even a "kit" conversion should be installed by folks who know what and where to measure.
i Know its not for looks i have a 540 on the way and i want to get down the track just as fast as it will take me i'm a straight line guys too i just don't see a whole lot of difference between a shop jig and someone in their own garage being very careful about their measurments. Who here hasn't seen a professionally backhalved car launch strait toward the wall. Adjustments have to be made with any system right? But i'm sure your right and in the end i will probably be taking it to a shop and paying the moola to have it done.