This is a new production sector shaft seal. This is the seal on the steering box where the sector shaft exits. This is the seal for the 15/16″ sector shaft. This is the large one as found on the M38, M38A1, M170, and some of the later CJ3Bs and 50’s and early 60’s CJ5s. Please check your shaft measurement before ordering. This seal is 1 3/8″ outside measurement.