Having problems with your Chevrolet Suburban 1500 ?

I have 2003 suburban 1500 xfer case makes a clanging noise when I put it in gear.It seems to go away once I speed up. Any thoughts.

Posted / edited by AnonymousUser on : 24-06-2019

Answers :

There has been some problems with the tranfer cases on these models, it has been enough of a problem tht GM publashed a diagnostic flow shart for the truck and i will include it hear for you. after doing the checks to determan what is causing the clunk get back with me and i can talk you threw some of the repaires but 1st of all we need to know what the cause is.
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Mine does the same noise! It seems to do it when my free wheel hubs are locked in, but in 2 wheel drive. I found that the front output flange bearing in the front drive housing has no rearward stop on it. My front prop spline was too short and the prop was closing up and pushing the drive flange into the transfer case on full compression.

The space between the 4wd selectors inside the front housing was closed up and causing noise.

I can cure it by slide hammering the drive flange back out.

I cant see a cure, unless I machine an circlip groove inside the front drive housing to hold the bearing in place.

This may be what you are hearing, I dont know, but its definitely been a problem on 3 transfer cases Ive had on mine(413,410, and 4.16 low ratio)
Repair Help & Product Troubleshooting for Chevrolet Suburban 1500

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