4000 pound upper control arm
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Joined: Feb 2005
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Just wanted to update my response to this thread in regards to the problematic breakage that occurs on the upper A arms
Recap: '89 D250 upper driver side broke in a parking lot. Replaced with an arm from a '92 D250 diesel and noticed it had a doubler plate right where my original A arm broke. Thought was that changes were made in '92 to the intercooled models that bolstered the A arms. Suggested to look for 92/93 a-arms to replace - this is not that case.
Update: Inspected 1977 D200 Club Cab 440 V8 9000 GVW truck that seemed very beefy with thick gauge frame, 7.5 inches tall. (thicker gauge than my '73 d200 club cab) 5/8" wheel studs. (SRW)
Noticed that the front A arms were the beefy version with the doubler plate on the inside, where my '89 D250 arms failed. Appears that these A arms can be found on 2wd trucks going back into the 70's but look out for a camper 9000 or 10000 version to be sure.
Just wanted to pass on the info so people can broaden their search if looking for a much needed safety upgrade in the junk yard. A sad situation that Chrysler did not install these heavy A Arms on ALL cummins pickups - they are definitely a worthwhile upgrade.
Recap: '89 D250 upper driver side broke in a parking lot. Replaced with an arm from a '92 D250 diesel and noticed it had a doubler plate right where my original A arm broke. Thought was that changes were made in '92 to the intercooled models that bolstered the A arms. Suggested to look for 92/93 a-arms to replace - this is not that case.
Update: Inspected 1977 D200 Club Cab 440 V8 9000 GVW truck that seemed very beefy with thick gauge frame, 7.5 inches tall. (thicker gauge than my '73 d200 club cab) 5/8" wheel studs. (SRW)
Noticed that the front A arms were the beefy version with the doubler plate on the inside, where my '89 D250 arms failed. Appears that these A arms can be found on 2wd trucks going back into the 70's but look out for a camper 9000 or 10000 version to be sure.
Just wanted to pass on the info so people can broaden their search if looking for a much needed safety upgrade in the junk yard. A sad situation that Chrysler did not install these heavy A Arms on ALL cummins pickups - they are definitely a worthwhile upgrade.
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Joined: Nov 2009
Posts: 1,955
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From: McCook, Nebraska
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