Rephrase the earlier question. was any 1938 morris 8s manufactured with an auto gear box

they take a lot of lining up, it also depends on the temperature you are doing the work in as the wood sweats and gets wider or shrinks, you need to make the room so that the would can shrink
Shrinking and swelling occur as the wood changes moisture content in response to daily as well as seasonal changes in the relative humidity of the atmosphere, i.e., when the air is humid, wood absorbs moisture and swells; when the air is dry, wood loses moisture and shrinks.

With a little initiative, you could probably research this yourself on Wikipedia. A brief review makes no mention of automatic gear boxes in the article on Morris motors. The first automatic transmission, as we currently understand it, with torque converter and planetary gearsets, was the hydramatic transmission introduced by General Motors in 1939.

Buy and fix 10A a car noise suppressor filter box.This will will filter and eliminate noise.

Run basic tests. Compression? Spark? Fuel? Spark timing?

make sure that you have a compatible sender unit on the gear box
check for wiring correctly connected on the gear box

Disconect battery. Push into hole at front of gear box. Wiggle a little until it slids fully home and tighten the two small bolts. Connect high tension lead and battery then with key on, pull the starter.

remove the battery lead. remove the drive shaft at the diff flange and remove it from the gear box. undo engine mounts/ cross member at rear of gear box if necessary. undo bell housing bolts around rear of engine. remove gear lever if stick shift . If not remove linkages at gear box Pull gearbox rear wards and lower to the ground . A point of interest here is that when a clutch sudders it is advisable to firstly check all the engine mounts are not soft as this affects the clutch operation especially if you have a cable operated clutch

There is a steel rod at the front of the gear box - lower end at rear of motor. It is threaded with two nuts. Undo the locking nut and adjust. Then tighten the locknut.
If you can't get it into gear without grinding the gears, it could require a new clutch.

rover engine was designed around a small block buik from the 50s and has not gone through many changes since, other than di placement and fueling, many engines will fit with or with out bell house adaptors , if it has the standard gear box then 250 bhp max if your willing to engineer, then any thing is possible.if your in the us then you have world of salvage dealers their . id be looking for a 5.7 hemi on on a c3 or c10 gearbox for auto or manual (stick) borg warner t5 or getrag from a perfomance ford from the 80s rear wheel drive of coarse. here in the uk we dont have the a bundce of big v 8s or the likes of auto zone and so on. hope this helps.

Automatic Transaxle Fluid (GM part no. 89021903)