will_drift_4_food

Thanks for that info. I decided to swap the bellhousings and see how long my used truck tranny lasts. It's good to know that the short tail transmission came in a variety of vehicles. I think I will likely source another one and rebuild it after I get the car up and running again. Also, where can I find these Adamantium gear sets? FWIW, I'd prefer them to be straight-cut gears, with diamond synchros. If this is not currently in production, I will immediately begin AD synthesis and call my new company Weapon-X.

Well, though I don't want to admit it, there apparently was a bearing on the countershaft. Apparently it fell off during disassembly when the tail section was lifted off of the bellhousing. It must've rolled underneath the dolly and we didn't see it until today. I suppose that it isn't good that it just fell off, either. After I tap it back on, it comes off easily when I pull on it. At any rate, I'm still very interested in reusing the internals from the other transmission, I just need to make sure that the component spacing and shaft diameter are the same. Is there any chance that the output shaft from the shorter transmission can be welded to the mainshaft of the SR transmission? At this point, it would be nice to just be able swap the shaft for the shifter extension and change the output shaft to a shorter one. I'd also have to tap the case somewhere for a vent since the current vent tube (for the SR trans) is in the rear housing of the transmission. Picture with bearing reattached: And the inside of the truck bellhousing (irrelevant now, I am sure): And the inside of the SR20/180sx bellhousing (housing rotated 180deg): Interested in the general community consensus of cutting/welding the output shaft vs swapping components between shafts. What does everyone think the best plan of attack is here? Cut and weld? Disassemble mainshaft components and reassemble new components on old (shorter) shaft? Also notice in the pics of the front covers, only the SR20 has a visible ring where the countershaft bearing was. This ring is absent in the photo of the short transmission, which is another reason we thought that it might have just been "missing". Thanks in advance. Jason

A better question might be, what is required to remove the output shafts from these transmissions? Complete dis-assembly of the mainshaft? Or is there a trick to be learned here? If complete dis-assembly is required, I'll need some bearing and gear tools. What specific tools (at a minimum) would be required? Thanks in advance.

Only because I ran out of time before having to report back to work for the week. I plan on doing that as soon as I get the chance, but I thought someone else here might know something that would clear things up for me, like "That truck tranny never came with a countershaft bearing" or "that'll never work because the rods that hold the shift forks are a different diameter", etc. With most Toyota transmissions, swapping the bellhousing does not require opening of the case, so this is uncharted territory for me and I'm not sure I know what to look for from a compatibility standpoint. Nice build thread, BTW.

Okay. This is my first post, and though I did quite a lot of searching before starting it I was unable to find an answer. Other forums I looked at seemed to point me in the direction of HybridZ. I am a RWD Toyota enthusiast, and am putting a Blacktop (s13) SR20DET into my AE86 Corolla. I have purchased a complete SR swap, with long-tailshaft FS5W71C transmission. I have also procured a short-tailshaft FS5W71C transmission from a Hardbody pickup, unsure of year but I am sure I could find out. I am thinking that is irrelevant, though. I bought the short trans so that my shifter would come through the floor in the same place as the T50 transmission that I removed, saving me having to cut a new hole and modify my center console. I was in the process if swapping the bellhousings between the Nissan transmissions when I found what appears to be a "missing" bearing on the countershaft of the short tail trans (see pictures). Top picture is my short tail and the bottom is the long tail. The new transmission attached to the SR is extremely clean inside (and has a bearing installed where the other does not), so I want to know if I can just swap the output shafts between the two transmissions and use the front mainshaft and countershaft assemblies from the SR trans. I have compared the exploded gear component diagram for both the long and short transmissions, and it appears that the output shaft from one is simply longer than the other; the gear spacing is the same. Can anyone confirm or deny this? Also, the shift forks in the long tail (newer) transmission seem beefier. This is my other motivation for wanting to swap the shafts. Any ideas or input welcome. Jason