Eaton HO72/HO52 vs. 14 Bolt FF - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Tdbengry · 08-02-2018, 04:56 PM

Quote:

Originally Posted by Getter-Done

1/2 diameter threads. Has 13 threads per inch and is 1 3/4 inches long.
Take 3/4 wrench or socket.
1/2x13TPI and 1.75 inches long

Thank you very much for the timely reply, I'll head to the hardware store. I took mine out to inspect and have no clue where I put them 😅

**Getter-Done** · 08-02-2018, 05:33 PM

Quote:

Originally Posted by Tdbengry

Thank you very much for the timely reply, I'll head to the hardware store. I took mine out to inspect and have no clue where I put them 😅

They also have lockwashers.

Tdbengry · 08-09-2018, 09:25 PM

Quote:

Originally Posted by Getter-Done

They also have lockwashers.

Okay, I've got the bolts in everything tourqed in spec, including the rear cover axles and pinion. But now I cant move the pinion by hand, the wheels run opposite of each other. Any ideas?

**Getter-Done** · 08-09-2018, 09:58 PM

Did it have a stack of shims between the Pinion housing and Rear-end case?

Tdbengry · 08-09-2018, 10:02 PM

Quote:

Originally Posted by Getter-Done

Did it have a stack of shims between the Pinion housing and Rear-end case?

If it did I was unaware, I removed the 5 bolts then tried to remove the pinion nut, it's very stuck so I left it. 2 years later came back and that's where I'm at. Everything moved by hand twisting the pinion before I tightened the 5 bolts down. Now the wheels will move but the pinion I cant move all but a couple inches then I stops.

**Getter-Done** · 08-09-2018, 10:22 PM

I have 3 of these Rear Chucks.
I have not disassembly any of them except for removing that one bolt to get a measurement.
I hope I can help you with this problem.
Are you familiar with how to set the ring and pinion back lash with Persion blue?

Tdbengry · 08-09-2018, 10:24 PM

Quote:

Originally Posted by Getter-Done

Attachment 1809813

I have 3 of these Rear Chucks.
I have not disassembly any of them except for removing that one bolt to get a measurement.
I hope I can help you with this problem.
Are you familiar with how to set the ring and pinion back lash with Persion blue?

I'm very under educated when it comes to anything pinion, I can pull axles and set a new diff in but that's about it.

08-09-2018, 09:58 PM	#4
Getter-Done Senior Member Join Date: Dec 2009 Location: TN. Posts: 7,795	Re: Eaton HO72/HO52 vs. 14 Bolt FF Did it have a stack of shims between the Pinion housing and Rear-end case? __________________ ________________________________________________________________________________________ ____________________________________________ 84 Chevy K-20 63 Impala (my high school car) http://67-72chevytrucks.com/vboard/s...Crew Cab Build

08-09-2018, 10:22 PM	#6
Getter-Done Senior Member Join Date: Dec 2009 Location: TN. Posts: 7,795	Re: Eaton HO72/HO52 vs. 14 Bolt FF I have 3 of these Rear Chucks. I have not disassembly any of them except for removing that one bolt to get a measurement. I hope I can help you with this problem. Are you familiar with how to set the ring and pinion back lash with Persion blue? __________________ ________________________________________________________________________________________ ____________________________________________ 84 Chevy K-20 63 Impala (my high school car) http://67-72chevytrucks.com/vboard/s...Crew Cab Build



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