I have friend that needs new king pins on his old 40-49? Plymouth. Are they difficult to replace? Any special tools needed?. What's the best place to get a new set? Thank you.
NAPA has them. Or at least they cross referenced the Chrysler part fairly recently. See: http://www.ply33.com/Parts/group2#2-04-01
I have limited experience with king pins. First time took a hydraulic press at an auto shop to get them out. Second time they came out with hand tools. So my take is that your mileage may vary.
The bushings should be reamed after being pressed in and the reamer should be one with a pilot shaft to keep the center line of the two bushings lined up.
When you or a mechanic go to install the bushings, make sure they are the correct size. At some point, the king pin bushing diameter was changed by about 0.003 to 0.006 inch. On my 52, the bushings with the king pin kit could be pushed by hand thru the bushing area. The next kit I got had two sets of bushings having one set that fit my car.
In my Plymouth Service Manual for '46 - '54 cars does show 2 different tools used/needed to remove & replace those bushings. One is Special Tool C-328 for removing and installing the bushings, and the other is Special Tool C-369 for reaming the bushings. Since your car is a 1941 model, I'm not sure if the procedures would be the same, but without those 2 tools, I'm sure it would be a real PITA. That said, a good front end specialist would probably have some kind of tool very much like those, especially if he deals with antique/vintage automobiles.
According to my Mopar Parts Manual, he Upper & Lower Bushings are the same for '35 - '54 Plymouths, 633 672 as it specifies there are 4 in each car.
Hope this helps, ;)
Quote from: Gaby51 on August 10, 2012, 07:30:00 PM...
According to my Mopar Parts Manual, he Upper & Lower Bushings are the same for '35 - '54 Plymouths, 633 672 as it specifies there are 4 in each car.
Got a full title and/or scan of the cover of that manual? The books I have don't cover that wide a range which makes it more difficult to determine what later parts might fit. The one I have that covers the most years is a '36-'48 Plymouth Parts book. Sure would be nice to get a book that covered more years and more Chrysler built makes.
Got a full title and/or scan of the cover of that manual? The books I have don't cover that wide a range which makes it more difficult to determine what later parts might fit. The one I have that covers the most years is a '36-'48 Plymouth Parts book. Sure would be nice to get a book that covered more years and more Chrysler built makes.
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I don't have a photo of the inner "Parts" book, and it's too heavy to put on my scanner, but I found and bought both of them (the Hard Cover pictured & the Soft Covered Book) on eBay.
I was just looking for something on Andy Bernbaum's site, and they carry King Pin Bushings and Front End Rebuild Sets, so give his site a look-see.
His site is as:
http://www.oldmoparts.com/Default.htm
I had luck with the www.oldmoparts.com replacements. Taking everything apart was easy. Installation required a press for the bushings, and the special reamer tool. I was able to borrow one from a club member. If its more than you care to tackle, try and find a shop that does alot of trucks. Trucks continued using kingpins long after they vanished from cars.