Thanks for the reply. I finally bit the bullet and followed my tuition and removed the seat back. Yes, I am sure I could have removed the whole seat assembly as you suggested but you can just remove the seat back cushion without removing the whole seat. Look under the seat back cushion (bottom) and you will see two screws, one on either side that go through a couple of wire brackets and into the seat frame. Remove these screws. Then you will see four metal brackets that are part of the seat frame. I was able to spring the brackets away from the cushion spring frame with a wide blade screwdriver. Once the seat back is loose from the clips and the screws, the back can be pushed down to remove it from the upper brackets and the seat back can be removed. The upper brackets look like three 10penny nails that actually puncture the seat back material and hold the seat back cushion frame to the overall seat frame.

Replace the seat back in reverse order.

Rod Smith
Reno NV

I am planning to install seat belts in my 37 120 coupe convertible. I am planning to install the outside belts through the chassis channel behind the seat basket. To do this I need to remove the seat back. I found two screws under the seat back but it still won't budge. There appears to be some sheet metal clips along the back frame on the lower edge that need to be bent?
Any help would be appreciated before I do something wrong,
Rod Smith
Reno NV

Go point! I have only used it to top off the 37 Packard rear end so there has been little dilution. Will be doing some routine maintenance on the 37 shortly and will drain and refill with a GL5 oil. The Penrite 250 is good for trans and rear ends with yellow metal which the Cadillacs have. I see that Penrite makes a GL5 but says no yellow metal. Does anyone know if there are brass parts in the 37 120 rear ends?
Thanks for the tip,
Rod Smith, Reno NV

I use Penrite 250 in the rear ends in all my cars (14,18 Cadillacs and 37 Packard) and use it in the Cadillac transmissions. Seems to work great. I get the Penrite 250 from Restoration Supply in Escondido CA restorationstuff.com
Rod Smith, Reno NV

I am interested in the conversation about "cup grease." My older cars all call for #2 cup grease but I have found no one that can tell me what it is. Obviously it is no longer a necessity as it was in the early days but I sure would like to find a grease that is similar.
Any help?
Thanks,
Rod Smith, Reno NV

Good thoughts! It does not happen while driving. It only pops/groans when starting up and turning the steering wheel. It may be more pronounced when backing up as out of a parking spot and turning the steering wheel.

Rod Smith, Reno NV

Well, it wasn't loose lug bolts or the wheel bearing! Will have to put it up on my lift and do some checking. Would the king pin cause a clunk if it is worn?
Rod Smith, Reno NV

Thanks for the tips! I will begin looking into the problem this weekend.
Rod Smith, Reno NV

Had my 37 120 coupe convertible out for a 300 mile 3 day outing this past weekend and the front right corner developed a clunking/groaning sound only when I turned the steering wheel at slow/stopped speed. Seemed worse when I backed up. Any ideas before I start my search?

Thanks for any ideas,

Rod Smith, Reno NV

Used them 20 years ago and the chrome is still looking good. They did diff covers, window trim, and other misc. parts. At that time they were fairly reasonable!
Rod