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Old Sep 4, 2011 | 02:19 AM
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99Z28camaroman's Avatar
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Default 3.42s

I have a 98 TA A4 with 2.73s and I have just managed to buy a set of used 3.42 geras from a 98 TA M6,

This is quite a find in the UK and to show how thin on the ground they are these are the same gears I bought off CamaroZ28.com from a USA 98 TA owner about 5 years ago and sold to a mate who still had them.

I checked the part number and they are 12:41 GM 26050890 XXX and they are definatly 3 series gears.

So they won't fit my 2 series carrier without a spacer which was what I used to put them in my 95 Z28 5 years ago. I can't afford a 3 series carrier or a set of 2 series thicker 3.42 or 3.73 gears.

I know this is a worthwile swap and when I put them in the 95 Z28 the differnce was like night and day it really woke the car up and dropped me .3 of a second at the track.

I know some of you guys don't like using a spacer for this swap but I know from experience that they work fine for swapping 3 series gears into a 2 series carrier. Show me a thread where a spacer caused an axleto fail!

I did a search on spacers and found a couple for sale on here one quite recent and one from 2010.

Does anyone on here have a spacer and longer bolts they are willing to sell I will put a want ad in the classifieds aswell but it is more likely to be seen here.

Remember I live in the UK so shipping will be higher which I will pay and I have PayPal for paymentin US Dollars.

I have a good buyer/seller rating on here and a 316 star Ebay rating with 100% feedback

Sorry for the long post.

A question I do have is what happens if you do this swap without a tune is it just your speedo is off or does it effect gears changes for an auto?
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Old Sep 4, 2011 | 03:42 AM
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Yes it effects your gear changes as shifts are determined by mph which will be reading incorrectly.
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