Thread: XAB and XBB trans code questions..

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  1. #1 XAB and XBB trans code questions.. 
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    I have a 00 GTP and the transmisison has decided to take a crap AGAIN!! Im having issues finding out which one goes in my car. The tranny thats in it is a rebuilt one from a local shop and didnt either put the id tag back or it washed off.

    So can ANYONE tell me the differences?... How can i find out which one that works properly?

    Also, which trans are swapable...meaning will on work from a 98 gtp? or a 02?

    thanks
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  2. #2 Re: XAB and XBB trans code questions.. 
    DUI BABY Bio248's Avatar
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    98-02 has the same transmission. you can choose from all of them.
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  3. #3 Re: XAB and XBB trans code questions.. 
    Transmission Expert Trannyman95's Avatar
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    Code "XA" was used in all 98-02 and some late 97s and early 03s. "XB" was only used in 2000, as was "XA". Almost every 4T65E in 2000 had two different options codes as there was a minor valve body change in that year and that typically would distinguish the difference. Interchange books often say it must be replaced by the same but that has more than proven to be untrue. 98-99 will have a threaded end style cooler line fitting while the 00+ transmissions all used quick connect style cooler lines. You can use a 00-02 in an early application by using the correct cooler line fittings. Electrically all 97-02 GTP/GS model code- HK (97 only),XA,XB transmissions will interchange just fine into another GTP or GS and wiring/pcm arrangement. You can also use a larger bodied car trans such as one from a supercharged Bonneville. The 99/00+ models had an internal mode switch but it wont get used, you just put the external switch and range lever from your GTP trans on top of the other trans.
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  4. #4 Re: XAB and XBB trans code questions.. 
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    So did any1 actually use the xab in place of the xbb trans if so did it work fine
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  5. #5 Re: XAB and XBB trans code questions.. 
    Turbo is the way to go. BillBoost37's Avatar
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    I drink..so consider that when reading my posts.

    2010 Audi A6 Dual IC's
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