newbie question rear end

[TAHOEPETER]

How do you know what size rear end you have in a 2004 4x4 Tahoe...8.5? or other sizes? is there an rpo code for the size ...I need spider gears..thanks alot

 

[TAHOEPETER]

all set...thanks

 

[Shaggy]

What did you find out?

 

[TAHOEPETER]

I had the non posi 8.5 rear end with worn spyder gears....

 

[jakl1313]

Hello. I have a question... How did you know you're spider gears were going out? The reason why I asked is I have a slight "whining" when I'm driving. I have a 2003 and someone said it might be my rear end getting ready to go.

 

[TAHOEPETER]

my symptoms were a clunk when going from drive to reverse or reverse to drive...I thought it might be universals but there were good...took off the cover and discovered the spyder gears had some play in them...no chips or teeth missing just old age I assume. Try jacking your truck up and put on jack stands and then put it in gear and see if you can pinpoint where the whine is coming from...might be axel bearings??? or Pinion bearing also...good luck

 

[tuthshutr762]

Typically, if the whine is only under acceleration (or load) it is the rear end if it is all the time it is probably the wheel bearing. I am not a mechanic but that is what I have experienced

 

[jakl1313]

Whiny...

Thanks for both of your insight and replying! I'll be looking into it soon. Yes, my Tahoe does also "clunk" into gears (D,R). Everything is solid underneath. So I'm thinking same issues...
Thanks again!