zxturbo Posted January 13, 2017 Share Posted January 13, 2017 I am looking for a good complete trans or a good countershaft and good 3rd gear. I was in 3rd and kicked it around 45mph and literally exploded the teeth off. I have tried everywhere and parts are obsolete. Any ideas would be greatly appreciated. Thanks in advance. Quote Link to comment Share on other sites More sharing options...
FricFrac Posted January 13, 2017 Share Posted January 13, 2017 Thought about an S13 tranny swap? Quote Link to comment Share on other sites More sharing options...
madkaw Posted January 13, 2017 Share Posted January 13, 2017 Are you sure about the gears being obsolete? I thought the last one I had rebuilt the guy found a new 3rd gear. It seems that the 3rd is the Achilles heel of these trans . Quote Link to comment Share on other sites More sharing options...
zxturbo Posted January 14, 2017 Author Share Posted January 14, 2017 The 3rd gear I can get. The countershaft ( the bottom row of gears ) is obsolete. Those gears are made onto that shaft. I can get synchronizes and bearings I can get all day long. The counter shaft is the problem. Quote Link to comment Share on other sites More sharing options...
zxturbo Posted January 14, 2017 Author Share Posted January 14, 2017 What is involved in the S12 trans swap? Quote Link to comment Share on other sites More sharing options...
zxturbo Posted January 14, 2017 Author Share Posted January 14, 2017 Sorry S13 trans swap Quote Link to comment Share on other sites More sharing options...
zxturbo Posted January 15, 2017 Author Share Posted January 15, 2017 Thinking about an adapter kit from ATI and running a GM 700R4 with a trans brake. I have heard that the 5spd out of a 84 or 85 300 turbo is the same trans in the 280zx turbo. I have tried to research and can't really get a straight answer. Is that true? Quote Link to comment Share on other sites More sharing options...
madkaw Posted January 15, 2017 Share Posted January 15, 2017 I believe that's correct . It seems hit and miss with these trans whether there is 3rd gear issues or not. I'm going to pony up for a G Force conversion $$$ . There is no really easy swaps . Most involve machining . Quote Link to comment Share on other sites More sharing options...
zxturbo Posted January 15, 2017 Author Share Posted January 15, 2017 I have the Hurst Pro 5.0 shifter with the shifter stops on it. I was already in 3rd only going 45mph and when I kicked down on it and it REALLY started pulling BAM there it went. Torque . Thinking of the GM auto trans swap but I really hate to cut my exhaust. I have a full 3inch stainless system and I know it won't fit around the bell housing. I don't know if anyone has tried the full 3inch stainless system from CX Racing but it is a very nice system and bolts right up with no fab work or anything. Sounds awesome too. There isn't anyone around me that does mandrel bending but I will figure something out. Quote Link to comment Share on other sites More sharing options...
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