So how do I tell which rearend I have

[Boones]

I have a 14 bolt rear end in my 2000 crewcab short bed. I have heard the term partial and full floater thrown around when talking about these rears also is there two different sizes available?. So what does this all mean

 

Also as i just got this truck and have never had a 2500 model, when I go to give it gas it feels like the rear end is locking into gear (as if it goes from free spool to locked in) as the truck starts moving. Is this a normal thing, could it be a neeed some new U-joints (I grabbed the driveshaft and it feels solid)?

 

thanks again for your knowledge...

 

Boones

[dcairns]

So how do I tell which rearend I have

 

Look over your shoulder, in the mirror

[Wingnut]

Look over your shoulder, in the mirror

 

 

Boones.. What does the RPO code in your glovebox say?

[Boones]

What codes numbers should I be looking for? There are a bunch of them

[Wingnut]

Look here, it lists the RPO codes for your vehicle. Just look up the rear-end ones.

[Boones]

Wingnut, I went thru the 54 options and figured out the following

 

GT4 - 373:1 ratio

G80 - Locking rear axle

 

So what does this tell me. (I thought there would be a code stating its a 14 bolt rear end versus a 10 bolt?

 

These codes one thru me for a loop

code X-88 - Chevrolet Conversion? could that be because of the

crewcab shortbed (its a rare option only in 99 and 00)

YD3 - Front Axle for scheduling GVW plate (this is a 2 wd)

 

I found a few other codes I could not translate

 

CMD - ?

R6P - ?

SLM - ?

VX5 - ?

ZQ3 - ?

1SB - ?

1SZ - ?

6XJ - ?

7XJ - ? (probably has something to do with the 6XJ code??

 

at the bottom of the list is BC/CC and U334D

[Mike C]

Try this link for the RPO,s rpo link

[Boones]

thanks Mike, that got me sorted out..