NP241C Output shaft snap ring.

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Blackbeard44

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Location
Washington State
First Name
andy
Truck Year
1985
Truck Model
K20
Engine Size
6.0 LS
My transfer case made a god awful noise and it felt like it bound up and snapped, so I went back home swapped out trucks and went to work, when I got home I removed the driveline and tailshaft housing to take a look and I discovered a bent snap ring.

I ordered a Sonnax Split Ring Retainer part# 100420-02K.

I have heard that this snap ring is a common failure on the NP241C transfer case and glad I took a look when I did.

I will update with more pics and installation info when the parts show up

:edited to fix my crappy grammar

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Last edited:

Blackbeard44

Full Access Member
Joined
Jun 14, 2020
Posts
280
Reaction score
258
Location
Washington State
First Name
andy
Truck Year
1985
Truck Model
K20
Engine Size
6.0 LS
new parts showed up today, my phone was dead and charging when I put it back together, was very easy, slide the 2 pieces onto the shaft and they will click into place, than slip the large washer over the top of them amd install new snap ring, literally took 5 minutes to install, here is a pic of the sonnax parts

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