1931 Ford Model A Roadster

1931 Ford Model A Roadster

Wednesday, September 3, 2014

Subrails, Crosschannels and Floorpans

Today I decided to see if all the new sub frame parts and floor panels I have accumulated would actually  finish out the bottom of the body where it attaches to the frame.  I had to purchase  new subrails, cross channels, side curtain storage pans, seat risers, and some floorpans from the suppliers and a few originals  from Walt as there were none in the car when I got it.  I have no idea how this car stayed together with so much of the lower body rotted out when my family was driving this car in the sixties and seventies.  Sometimes we had five or six people riding in this car in high school and never knew how rusted it was.  I guess Henry built a heck of a strong car back then.

     






As you can see the half rail repair rails don't come as far forward as advertised, leaving a major rotted gap in the body subrail.  Since this is a roadster, this is the only structural section at the doors, keeping the body from flexing and the doors from popping open in a hard turn.  I have to either find longer subrails or fabricate a section to fill in the gap.  All the floor pans fit really well but I am missing the riser for the back of the drivers seat.  Since the car was upholstered without this piece, I have to make one to fit the existing seat back or modify the seat I have to fit the missing seat riser.  Having so much fun!  Steve

Finally In!

The differential is finally finished!





After preloading the pinion bearings and carrier bearings with shims to get the right tension on the bearings, I adjusted the gasket thickness on each side until I got a good pattern on the gears and correct backlash.  Next I put in the axles and spyder gears and safety wired the bolts on the carrier.  Installed the unit in the housings and torqued to specs.


   




Next big job is to install the main leaf spring and shackles so I can add the other leaves.  Greased up all the leaves and started assembling them.  It took four hands and a lot of clamps to get this strong spring back together. Good thing daughter Sarah was home to help!



     After getting the spring leaves together and the clamps around them it was time to install the unit in the car frame.  With Sarah's help and a jack we got her to fit nicely back under the cross member where we bolted it in.  This took longer than anything on the car so far but I hope a nice quiet  differential will be worth all the time and effort when it is finished.  Steve