I came across this booklet. I had not seen one of these before so have uploaded it on-line so all can view it. Click on the links on the right hand side to download a selection of J related manuals. Did you know that the pre-war MG TD rear axle has the same internals and brake drums (if fitted with steel wheels not wire wheels). You can get NEW crown wheel and pinions in 4.875 to 1, 5.125 to 1 and 5.444 to 1. All would be better than the 5.625 to 1 that is standard fit now that our vans are used on more longer trips than the start stop delivery work it was designed for.