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Quote:
Originally Posted by rotorwrench
T-170 RTS hard parts are not easy to come by. Folks generally have to purchase a whole used transmission and hope the parts are still good.
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This is true but parts are out there.
By total random chance, I got lucky and found a brand new cluster, the one needed to make the Goldilocks ratio, mis-listed on eBay as a Jeep cluster; none of the Jeep versions of this trans had OD. I could tell by the seller's pic and the relative size of the gears on the cluster that it was NOT a Jeep cluster. Had him send me a tooth count and sure enough, it was the 31-34-23-15 Ford OD cluster, and I got it for $90
. I also found a new 22T input shaft on ebay(to mate with the cluster) for a reasonable $119 and a used 19T OD gear from a used transmission parts dealer. I've also made a new 19T OD gear (not for the faint of heart). For reference the elusive 31-34-23-15 cluster on left and the RTS 27.6% cluster on right. They look the same but there is 1 tooth difference in the input shaft position and the OD position. The elusive 19T OD gear on left and the 19T OD gear I made on right.
With this cluster and OD the gear the ratios are:
1st = 3.01
2nd = 1.78
3rd = 1.00
4th = .79 = 27.0%
As far as parts are concerned it seems half the battle is knowing what you're looking for and the other half chance (luck).
Tom