What is the casting number on a steering gear box?
What is the casting number on a steering gear box?
There is a casting number on the housing of the gearbox (either 83 or 84). Casting number 83 is a “small bore” GMT400. Casting number 84 is a “big bore” GMT800.
What does the shift code after the date mean on a steering box?
After the date code is the Shift Code, indicating the work shift during which the box was assembled that day. The date code follows standard Ford date decoding. The first position is a number indication the Year of build.
How are steering boxes built in batches by code?
Steering boxes were built in batches by code. It is not unusual for Mustangs all across the country to have HCC-AT steering boxes all assembled within a 3 or 4 day span. We have seen boxes come in from all over the country for rebuild and notices that many of the same ID code have exact or similar date codes.
When did power steering shafts change in size?
Along with the change of fitting style in 1980, the input shaft also changed from 13/16-36 (pre-1980) to ¾-30 after 1980. You can simply change the rag joint to accommodate a smaller input shaft.
How is the steering column shaft end play controlled?
If endplay is perceptible make adjustments. The end play in the steering column shaft is controlled by shims and the body (Figure A). To take up worm shaft end play, loosen the 4 housing cover screws about 1/8″ and remove top shim.
Steering boxes were built in batches by code. It is not unusual for Mustangs all across the country to have HCC-AT steering boxes all assembled within a 3 or 4 day span. We have seen boxes come in from all over the country for rebuild and notices that many of the same ID code have exact or similar date codes.
After the date code is the Shift Code, indicating the work shift during which the box was assembled that day. The date code follows standard Ford date decoding. The first position is a number indication the Year of build.
Can a flathead steering Shim be removed completely?
The housing cover should not be removed completely because there is danger of the bearings falling out of place. The shims can be pulled out one at a time after the housing cover screws have been loosened enough to drop the cover 1/8″.
