What are the visual differences between a 1998 TB and a 2001 TB? Reason I ask is because I bought one on ebay, but the guy said it came off his Weiand Intake and would fit 98-02. I don't know how to tell the difference so I can determine what I have. I bought it but don't need it now since i had mine fixed. Thanks for the help

 

visual. none.

 

On the ones I've seen, visuallt the throttle cable arm on the throttlebody is different on the earlyer TB, the newer ones are a wider and the earlyer ones are thinner were the cable itself runs around it and the newer ones need a different (longer I believe) throttle body cable but not sure on the cable (witch is witch).

 

I have been reading that the cam size is different which allows it to open faster or slower. Thanks for the responses

 

When I bought my ported and powdercoated TB it was off of a 1998 and I have a 2001 and the only difference I found was the water hose connections on it. I just used this as an excuse to do the "throtlebody bypass mod".

Jman

 

I have a 99 and when I put a ported TB I got with my LS6 IM on the cables were a tad bit too long. Which leads me to believe one of two things is true. 1. The newer ones have a smaller cam gear. or 2. The newer ones have longer cables.

 

The coolant tubes and the vacuum tube are the same on 1998-2004 TBs. Only difference is the throttle cam were the cable connects. Just swap your throttle shaft out if its different.