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So I pulled the transmission out of my 1981 because first gear was knocking and found 2 teeth missing on the cluster gear. 1st gear always had a light tapping but the last time I drove it the tap became a knock. 3rd gear has always been noisy as well. So I'm going to have to do a full rebuild including a cluster gear and 1st and 3rd gears. I see the parts are readily available but it looks like this transmission came in at least two different gear ratios and I want to be sure I get the right parts of course. Did the T10 in 1981 come in more than 1 gear ratio and how do I tell which ratio I have if it does come in more than 1?
Summer teeth becasue som'er there and som'er are not Weird wear pattern on 3rd gear, not sure what caused this.
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count the teeth on the input shaft, the cluster gear and the cluster shaft and corresponding gear. divide the driven side by the drive side then muliply those together
driven over drive x driven over drive.
input/cluster x cluster/ its gear you want to know
the video has input on right side vs left
count the teeth on the input shaft, the cluster gear and the cluster shaft and corresponding gear. divide the driven side by the drive side then muliply those together
driven over drive x driven over drive.
input/cluster x cluster/ its gear you want to know
the video has input on right side vs left https://www.youtube.com/watch?v=qdtEvyg7Uxc
That worked. 19:29 on the input to cluster and 18:34 on 1st gear makes it a 2.88 I believe.
I also found out that the number of groves on the cluster gear is an indicator, i.e. you can see two groves on my cluster gear. I need to order a cluster gear with the same number of groves.
I found a post online that said that the groves on the input shaft is also a ratio indicator but mine has 5 groves which the post said is an indicator that it is a 2.44; however, I'm going with 2.88 in this case since the parts for that ratio seem to be working with the right teeth counts for both the cluster gear and the driven gears on the output shaft....plus the math works. I have my fingers crossed that I get the right parts.
That worked. 19:29 on the input to cluster and 18:34 on 1st gear makes it a 2.88 I believe.
I also found out that the number of groves on the cluster gear is an indicator, i.e. you can see two groves on my cluster gear. I need to order a cluster gear with the same number of groves.
I found a post online that said that the groves on the input shaft is also a ratio indicator but mine has 5 groves which the post said is an indicator that it is a 2.44; however, I'm going with 2.88 in this case since the parts for that ratio seem to be working with the right teeth counts for both the cluster gear and the driven gears on the output shaft....plus the math works. I have my fingers crossed that I get the right parts.
I found another post that indicated that 5 groves is a 2.88 so that is further confirmation that it is a 2.88.
T10 Broken Gears
