I too think its a Dana 44 YOu can contact precision gear and find parts that will drop you down as low as 3.23 Idid that with mine.

Jake

Originally Posted by papacatastrophe
Hey all,

I've got a 1963 GMC 1/2 ton 4x4 with 3.54 gear ratio in front/rear differential. I just put a T5 5 speed tranny in and I would like to switch my gearing down to a 4.11. I am going to leave a webshots link at bottom of this page with pictures of what I have and I was hoping someone could I.D. which type of spicer's I have (I think they are spicers) THese are 10 hole and the cover is only on one side.

I also would like to know if anyone wants to trade your 4.11" for my 3.54's or perhaps something else I have might interest you. Here's some of what I got lying around.
1. A complete spicer front-end just like in the pictures except the gearing is 3.73.
2. A complete rear end with 3.73's but I think this is from a 60's chevy (17 spline axles)(not a spicer)
3. I have a complete Rockwell T-221 Transfer case
4. Original A.C. Compressor
5. Grille for headlights

Please let me know if you can i.d. what I got on my truck as I have heard that certain spicers are rare to find parts for.

Thanks so much!
Here's the link: http://rides.webshots.com/album/580070853FRkNnN

Shane Hamilton
Warrensburg, MO

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