My '85 has factory original Bendix in the front and ATE in the rear. The ATE look like they are unmarked but if you look closely you can find a small ATE logo. My fronts are very clearly marked Bendix.

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LRG
1987 300D Turbo 175K
2006 Toyota Prius, efficent but no soul
1985 300 TDT(130K miles of trouble free motoring)now sold