not locking in - I have a 1999 chevrolet silverado 1500 4X4 when I put the truck into gear there is a clicking/grinding noise coming from the rear end and ...

bsnowden · by **bsnowden** [OP] » Dec 04 2011, 5:06pm

I have a 1999 chevrolet silverado 1500 4X4 when I put the truck into gear there is a clicking/grinding noise coming from the rear end and it won't lock into gear but the truck will run in 4 wheel drive any suggestions on what this could be?

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jlouis32 · by **jlouis32** » Dec 04 2011, 5:13pm

I had a 2000 that did the same thing, had to have it replaced at about 60K. A mechanic friend of mine did it, don't know what he put in it but I have over 100K on it.

Z71Silvy · by **Z71Silvy** » Dec 04 2011, 5:16pm

Sounds like a ring-gear let go, possibly a stripped yolk - either way it sounds like you're looking at some extensive rear axle repair. What were you doing with the truck when the problem first occured?

Best bet is probably getting a used axle out of a junk yard - there are so many of these trucks out there that you should be able to find a fairly low mileage unit and have very limited downtime.

EX-F150 owner · by **EX-F150 owner** » Dec 04 2011, 5:19pm

Pull the fill plug on the rear axle and check the fluid in it. If it looks metallic it's probably gone and will need a rebuild.

bsnowden · by **bsnowden** [OP] » Dec 04 2011, 5:20pm

I was just driving down the interstate and it let go no warning signs or anything. I have looked at local junk yards they sell complete rear ends for $140 for my truck.Just had a little trouble finding one just going to have to wait and till tomorrow to call around when they open.Do you know what year rear ends are compatible with mine have 3.73 gears in it

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not locking in - I have a 1999 chevrolet silverado 1500 4X4 when I put the truck into gear there is a clicking/grinding noise coming from the rear end and ...

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