O.K. Guys, These things are finally available. We started to make these wide wheel trailing arms years ago but pulled away for one reason or another and since MAP and KillerNoodle were filling the need, we focused on other projects. Recently there seems to have been a break in the supply chain of these arms so we thought we would answer the call of our fellow CTS and CTS-V owners.
We've had this version of our trailing arms on our car for about three years now with no issues, they were on the car when we were at the drag strip testing our 8.8 rear differential kit, had no problems.
The arms we make now are essentially the same but we did make some improvement in the bushing department. Originally we reused the OEM bushing in the hub where the arm connects. Now we have made new bushings that are a 90A durometer that are grease-able while the arms are on the car. This way if the bushings start to squeak six months down the road you don't have to remove the arms in order to grease them. The mounting bolts at the hub end are drilled and cross drilled with a zirk installed. A few pumps with a grease gun and the bushings are quiet again. The other end of the arms also have grease zirks installed, these bushings are a 70A durometer due to the fact they act as a hinge when the suspension travels up and down. If there is a large enough demand for a spherical bearing at the front end of the arm, we will explore that option.
I'm not sure what the clearance is between the factory arms and the factory wheels are but if my memory is correct it's about ONE inch (dumb), with our arms you will have almost 5" of clearance. That's more room than you will ever need, but that's what we ended up with after we went around the lower shock mount. The brace in the corner of the arm has also been formed to clear the bottom of the lower shock mount portion of the hub meaning no grinding is required like arms offered by others.
There have been problems with the tubes that the mounting bolts pass through made by others of wide wheel arms, we did not make this mistake. Even the prototype set that have been on our car all these years had tubes with a .220 wall thickness. These new wide wheel arms have the same tubes and will not collapse when the bolts are torqued to 130 ft. lbs.
We are offering these arms with and without the bushing that go in the hub. For those of you that wish to reuse your factory (softest bushing on the whole car I might add) the arms are $375 +frt, with the new 90A bushing the arms are $435 +frt.
These arms are not on our website as of now (7-19-13), give us a call if interested or you have questions.
These arms have been a LONG, LONG time coming, these are happy days.
Hope you guys back East get some heat/humidity relief soon, I hate being sticky !!
Peace Out all, have a good weekend...........Max
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