| Item name | Spare part part number | Description |
| 1 | - | flange bolt |
| 2 | - | Sleeve |
| 3 | - | Self-locking nut |
| 4 | - | flange bolt |
| 5 | - | Sleeve |
| 6 | - | Self-locking nut |
| 7 | - | Self-locking nut |
| 8 | - | Retaining ring |
| 9 | - | Mounting marks |
| 10 | - | ball joint |
| 11 | - | Stabilizer bar mounting hole |
| 12 | - | Upper control arm |
The upper control arm assembly includes the control arm, two bushings, and a ball joint. The top control lever is made of forged steel. The outer end of the lever has a hole for a ball joint. A small indentation next to the ball joint hole serves to properly orient the ball joint. The small hole near the ball joint is for attaching the stabilizer bar. The underside of the upper control arm has a bracket for attaching the height sensor arm and two additional brackets for attaching the brake hose, brake pad wear sensor, and wheel speed sensor cables.
At the inner end of the lever there are two bushing holders welded to the lever. A sleeve is pressed into each holder. The bushings are located between the lugs on the chassis and are fastened with bolts and self-locking nuts through metal inserts in the center of the bushings.
The ball joint is pressed into the upper control arm. The ball joint is fixedly seated in a hole that prevents it from moving. The retaining ring holds the ball joint in the hole. There are two semicircular cutouts on the front surface of the ball joint. For the ball joint to function properly, one of these cutouts must line up with the small indentation in the upper control arm.
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