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Pinion gear axle nut size #1319791 07/30/2019 11:41 AM
Joined: Jun 2017 Posts: 120 MI P posey 'Bolter
posey 'Bolter P Joined: Jun 2017 Posts: 120 MI	Have a 54 1/2 ton P-U and trying to determine the big pinion nut size prior to me tearing into the diff. Thanks

Re: Pinion gear axle nut size posey #1319813 07/30/2019 2:06 PM
Joined: Jul 2007 Posts: 444 New Jersey Shore ' '54 3600 Shop Shark
'54 3600 Shop Shark ' Joined: Jul 2007 Posts: 444 New Jersey Shore	I may be wrong but it's a good possibility this would be your Pinion Nut . Measure the nut ........it would be 1 & 1/8 " . If it's smaller........I have another possible pinion nut . PIC https://i.postimg.cc/W3xvSsV2/Pinion-Nut-Rear-Axle.jpg George '54 3600 Last edited by '54 3600; 07/31/2019 2:54 PM. Reason: add 1954 3600 A big help to many on the Bolt Now cruising in The Passing Lane

Re: Pinion gear axle nut size '54 3600 #1319834 07/30/2019 5:24 PM
Joined: Jun 2017 Posts: 120 MI P posey 'Bolter
posey 'Bolter P Joined: Jun 2017 Posts: 120 MI	George, I may have used the wrong wording but it is the but it is the big nut on the pinion shaft inside the differential that is peened over to keep it in place.

Re: Pinion gear axle nut size posey #1319858 07/30/2019 9:40 PM
Joined: Aug 2004 Posts: 1,418 Fredericksburg, VA SWEET ODSS Lawman
SWEET ODSS Lawman Joined: Aug 2004 Posts: 1,418 Fredericksburg, VA	I believe George is correct. If it’s the same size as a ‘51 which is 1 1/8” for sure. SWEET Sergeant At Arms: Old Dominion Stovebolt Society BUNS?!?!?!Where we're going, we don't need no buns..... 1950 GMC 450 1951 Chevy 1/2-Ton The GreenMachine In the Stovebolt Gallery

Re: Pinion gear axle nut size posey #1319885 07/31/2019 12:24 AM
Joined: Jun 2017 Posts: 120 MI P posey 'Bolter
posey 'Bolter P Joined: Jun 2017 Posts: 120 MI	Gentlemen, thanks for the help.

Re: Pinion gear axle nut size posey #1319962 07/31/2019 2:11 PM
Joined: Jun 2011 Posts: 5,096 Longmont, CO E EdPruss Crusing in the Passing Lane
EdPruss Crusing in the Passing Lane E Joined: Jun 2011 Posts: 5,096 Longmont, CO	If the issue is to have the correct size socket before hand, hock shops usually have a good assortment of single sockets to avoid having to buy a set. Ed '37 GMC T-18 w/ DD 4-53T, RTO-610, 6231 aux., '95 GMC running gear, full disc brakes, power steering, 22.5 wheels and tires. '47 GMC 1 ton w/ 302, NP-540, 4wd, full width Blazer front axle. '54 GMC 630 w/ 503 gasser, 5 speed, ex fire truck, shortened WB 4', install 8' bed. '55 GMC 370 w/270, 420 4 speed, grain, dump bed truck from ND. Works OK.

Re: Pinion gear axle nut size posey #1319996 08/01/2019 12:09 AM
Joined: Aug 2004 Posts: 1,418 Fredericksburg, VA SWEET ODSS Lawman
SWEET ODSS Lawman Joined: Aug 2004 Posts: 1,418 Fredericksburg, VA	The pinion is pretty long. I think a wrench which can also be had at the same place would be best. SWEET Sergeant At Arms: Old Dominion Stovebolt Society BUNS?!?!?!Where we're going, we don't need no buns..... 1950 GMC 450 1951 Chevy 1/2-Ton The GreenMachine In the Stovebolt Gallery

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