We are all welcome to our opinions. The crack was caused by the steering stop hitting the A Arm. The key to the repair was adding the backing plate that now distributes that stress over a larger area. As far as I am concerned the arm is stronger now than it was originally. I am thinking about adding the backing plate to the other arm to prevent it from cracking in the future.
The problem stems from the fact that the steering stop hits the A Arm just behind where the crack originated. I ground out the crack, welded it up, then added an 1/8" thick backer plate to the area where the steering stop hits so as far as I am concerned it is stronger than the original A arm. The main reason for my post was to warn others about the possibility of the crack in their A arms. Have you checked yours? Wally
Dave & Looney1, I will keep this in mind for the future. Don't bother warning you about the possibility of a problem because you just get criticized on this board. BTW Dave, It is "You're an accident looking to happen."
I originally posted this to warn others to look for this same crack in the LOWER control arm of their cars. I am trying to keep my car original so I am not converting to tubular control arms. I have welded the control arm and added an 11 gage reinforcing stripe to the inside of the arm where the crack occurred. If anyone is interested in the repair just let me know. Wally
Dave, I just looked at Rock Auto and they have a rubber "Bushing" under "Suspension" for the rear axle. It appears to fit into a slot. I don't know if this is what you are looking for but you can search it and enlarge the picture to see if it looks like what you are after. You can also talk to their tech people to see if it is what you want.
Keep in mind this is off my '67 Chevelle. Is the lower A arm on the Cutlass the same as the Chevelle? I know that some of the steering components are common between the Cutlass and Chevelle but I'm not sure about the A Arms. Wally
OK Dave, I apologize to you for flying off the handle. I tried several times to post pictures following the instructions but rather than getting help from anyone I felt like I was getting criticized. Wally
When I found this crack I posted this thread to warn the rest of the you about the possibility of the problem. Now after being called a "Knuckle Dragger" I am wondering why I should even participate on this board. Wally
Bummer, I just dropped the driveshaft the other night. The car is on jacks so all I have to do is figure out how I can lock the input to the rear end. Maybe a pipe held to the yoke by the U-bolts will do it. I would like to confirm it rather than having to pull the rear end apart. Thanks, Wally
I am passing this along for anyone working on their front suspension. I am currently working on the suspension of my '67 Chevelle. They use many of the same parts as the '65 Cutlass. I pulled the lower A arm off the passenger side of my Chevelle and while cleaning it up I noticed a crack just inboard of the ball joint. It appears that the steering arm stop hits just inboard of the crack. I have taken pictures of the crack but I haven't figured out how to post pictures here. If you want copies just PM me and give your email address.
I want to thank everyone that has contributed to this discussion. Would it be possible to document the various possibilities, required modifications, etc. on this site for future use by anyone wanting to make the conversion? I would like to ask anyone making the conversion to document it in pictures and a written description of the process. This looks like a very popular conversion and would be a good start to a "Techno" site on the board. Thanks, Wally