Several weeks ago I pulled the 5.14 gears.

Today I was actually doing a rear axle gear swap in between working on the transmission.

Here's a Tech Tip on this very swap.
http://www.stovebolt.com/techtips/axles/1%20Ton%20Upgrade/

Yesterday I picked up a crate with some 4.10 gears in it, shipped using Fastenal.
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Here I've put my old 5.14 gears in the crate, picked one 4.10 pumpkin to use. Another Stovebolter will get the other 4.10 set, place two more 5.14 sets in the box and ship it back halfway across the country.
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The new pumpkin and gears from 1970, also has the ratio/tooth count stamped on the ring gear, 10:41
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Some serious rust around the yoke nut. No dried grease so I hope the seal is good. If the seal does need replacing later, now is the time to at least remove the rust and spray some penetrating oil.
Used a punch and a little hammer to chip away at the rust, there was plenty.
Also note the torched off and stuck pieces of u-bolts.
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Two of the stuck bolt pieces came out OK with a C clamp and a socket.
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Two of them were seriously stuck and needed more persuasion, one also needed some heat to finally budge.
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Gave the pumpkin a quick wash.
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After scraping old gaskets I use a flat file to remove any burs and dings, here's one spot cleaned up.
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Also cleaned up the housing just the same, both sides. Used a somewhat dull bottom tap to chase the threads in the housing, all 20 holes. Finally cleaned out the inside as well.
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Gaskets,
Pumpkin gasket; thin, and cover gasket; thick. PICTURE Ferl-Pro part numbers RDS 5090 and RDS 5988
I like to use Permatex #2 on most gaskets. Put a little on and spread it about as thin as possible with my finger, flip the gasket and repeat. Don't worry about loosing any when flipping, plenty enough stays on the gasket.
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Also use the same Permatex on the bolt threads to seal them.
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If I spread just the right amount on the gasket only the tiniest little bit squeezes out.
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Also washed and removed any burs from axle and hub and put a new gasket on, Fel-Pro 55350. I didn't use any Permatex on the metal flange gasket because I'm not sure if it is a good idea? Time will tell if I should have. Did use Permatex on the axle flange bolt threads.
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Continued in next post,

Grigg


1951 GMC 250 in the Project Journals
1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
1952 Chevrolet 3800 pickup
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"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-