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Author Topic: Replacing ring and pinion gear - How easy??  (Read 2507 times)

Offline Laderhosen

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Replacing ring and pinion gear - How easy??
« on: March 13, 2011, 07:46:36 pm »
I need to re-gear the axle in the front of my '87 Blazer as my two axles have different gearing (long story...)

How easy is it to do? Is it something I could tackle on my driveway?? Is it possible to do without removing the axle from the truck??

Do I need any special tools?? Anybody got any tips... And how long should it take me???

Any help is appreciated... Thanks....
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'82 3/4 ton, 350, th400,
'88 K5 Blazer, 350, 700R4
’98 BMW 328i daily drive
’91 VW Golf Mk 2 with VR6 conv

Offline Blazin

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Re: Replacing ring and pinion gear - How easy??
« Reply #1 on: March 13, 2011, 11:26:12 pm »
It can be done in the truck.
You will need a dial indicator, and a mount that bolts to the axle, or a magnet mount base for the indicator. A Helms or = service manual will be allot of help. You should install new side seals, there is a tool that installs them with ease, its basically a jacking bolt. You tighten it and press the new seals in from against the other side of the inside of the diff. When you buy your gears ask them to include detailed instructions. You will need to crush the crush sleeve. It takes some brute force, and ignorance, a quality breaker bar and a long pipe, or an impact gun with some serious umph.
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Offline Laderhosen

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Re: Replacing ring and pinion gear - How easy??
« Reply #2 on: March 15, 2011, 02:19:41 pm »
Thanks. What is the dial indicator used to measure??
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'82 3/4 ton, 350, th400,
'88 K5 Blazer, 350, 700R4
’98 BMW 328i daily drive
’91 VW Golf Mk 2 with VR6 conv

Offline Blazin

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Re: Replacing ring and pinion gear - How easy??
« Reply #3 on: March 15, 2011, 09:32:47 pm »
The back lash between your ring, and your pinion gear. Don't quote me but I think its around / between 8 or 9 minimum, and 13 or 14 thousandths maximum.
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Some people are like Slinkies. Not really good for anything, but they still bring a smile to your face when you push them down a flight of stairs

Offline VileZambonie

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Re: Replacing ring and pinion gear - How easy??
« Reply #4 on: March 15, 2011, 10:49:32 pm »
Do a search on here for ring and pinion installation.
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