The Stovebolt Site Forums The Parking Lot Big Bolts King Pins

All right guys.. just finished rebuilding the rear.. now its on to the front... and i am in need of new king pins..

Do you guys generally take your axles to a machine shop and have them make new bronze bushings? Is there some company that is making new king pin sets?

Any info would be much appreciated..

Oh almost forgot.. i am working on a 1936 low cab big bolt of course!

Dug this one up yesterday.
http://vcca.org/forum/ubbthreads.php/topics/166745/1931_1951_king_pin_set#Post166745

You might do a search on eBay for Chevy truck king pin.

Thanks guys, I have looked on ebay.. haven't found them yet. But I did email the listing that KC posted up!

Just need to figure out if it is the right set, He believes that they should rebuild a 31-51 big truck axle.

Does anyone know if this would be true? My gut tells me that there were probably different king pin configurations.

Does anyone have the manual for a 36 or could at least tell me what the proper Part number/ size would be for the king pins?

I have a Chev book. I'm really not that familiar with the nomenclature. It lists series such as DB, EB, ED, FB and FD. If I can identify it, the GM part number will be the same p/n if GMC used it. I have lots of GMC books and I own all GMC. I can also scan the pages and email them to you.

My 36 1-1/2 ton GMC is a T-16 LA I believe it's the same axle. A friend has a 1934 1-1/2 ton Chevy is a PBOxxxxx Same axle. Hope it helps

Crenwelge...unfortunately, i have no idea what series my truck is, the only numbers on my truck are on what i believe is the number plate...

21RD12 5817 does any one know what these numbers mean?

Also, the guy who has the king pins said a rough measurement of the pin is 15/16" x 5-3/32... My frame is in storage currently, this to me seems about what the pins should be... but i cant say for sure..

KC.. are you saying that ur 36gmc has the same axle as the 34 chevy?

I appreciate all the help guys!

Corpo, it really looks the same. I plan on measuring it tomorrow as well as Johnny T's 34 Chevy. If I get a chance I will go over to where the 35 GMC Johnny T and I bought and check it as well. All three are 1-1/2 tons. Johnny T wants to put disc brakes on his. We are also checking into some 1986 Furd van spindles I have down in the boneyard. You mentioned that you have a plan in mind for a disc conversion in the "front end swap" post. What do you have in mind? Also while I'm at it do you want any pictures or measurements?

CORPO,

Here's the break down on your serial number 21RD12 5817

21 = Janesville Plant (1=Flint, 2=Tarrytown, 14=Baltimore,etc.)

RD = 1936 1-1/2 ton Utility w/ 131" wheel base and Dual Wheels

12 = Built December 1935

5817 = Unit number starting at 1001 (you have the 4,817th RD built at Plant 21)

Note...the first 1936 RD from Janesville was built 10-8-35 and was serial number 21RD10 1001. The last RD from Janesville was built 8-21-36 and was serial number 21RD08 17321 for a total of 16,321 RD's built in Plant 21.

Mike B

I can't find anything in the Chevy parts book. However, the GMC books give measurements. If you get exact measurements, it might turn out to be a very common part.

You should be looking for GM King Pin kit #601019 for 1931-42 Utility, 1946-50 3/4, 1, 1 1/2 ton and 1951-52 3/4 and 1 ton. This is with a relatively few model exceptions.

Or, the new part number/interchange is NCP 2621161.

Napa w/details

Hope that helps.

Jeff

Or for the same model in 0.010" oversize is GM king pin set 603538.

Interchange number NCP 2621161010

Napa w/details

0.020" oversize set is GM part number 604254, but there is no interchange available from what I can find.

Jeff

Thanks mike that is some great information, I have been past the Janesville plant a number of times.., cool knowing thats where the truck was built. I wasn't sure if that was even the vin number.. the state of WI issued a new vin for my truck... so I guess I wont run the original vin on the .. now I will have one for the next build

Jeff, that sure helps alot.. I wasnt aware that you could get these parts new.

Now the only thing... should i go with the NOS set at a lower cost or just go over to napa and pick up a new set? How do I determine if i should get the over sized pins?

Thanks for all the help guys I really appreciate it!

-Mike

Personally, I'd probably just go over to Napa. Ive seen a bunch of kits with parts missing and I would rather have the complete set rather then be missing a cap or something you wont be able to find by itself.

To determine if its oversize you will need to disasseble the front end and pull out the old kingpins. You need to check the holes/bushings in the axle for wear or distortion to determine if the pins have worked their way through the bushings and buggered up the axle itself.

Jeff

Jeff i hear you on not getting an incomplete kit... the guy said he would send me some pictures

this is what he said is in the kit

"I don't know the proper names for this stuff but:

The kit contains:
2- King Pins
2- King Pin Thrust Bearings
2- King Pin really thin wavy (~) Shims (washers?)
2- King Pin lock bolts w/nuts and lock washers
4- Round slightly cupped nickel size solid metal seals
4- Bronze bushings"

I dont know but that sounds like a complete kit..?

Your probably right.. it might be better to just go over to napa...

Thanks again for all the help guys