edrach Posted July 21, 2008 Share Posted July 21, 2008 I'm thinking of converting my '84 GL work Brat from the 5 speed d/r tranny (from an '88 wagon) to an EJ 5MT AWD transmission (along with an EJ18 or 22 engine). I have a one piece driveshaft already since there's too much rust to support the center carrier on the original two piece 'shaft. Anyone who's done this before know whether the driveshaft will have to be re-cut to match the AWD transmission? Link to comment Share on other sites More sharing options...
mellow65 Posted July 21, 2008 Share Posted July 21, 2008 from what i remember you have to get a custom drive line. but the other part of the equation is the front axles. being a different length then the ea82 the use of turbo axles wouldn't work. there was someone that was talking about building axles using legacy iners and 2wd ea81 shaft and outers. not sure if that ever worked out. i did come up with one other way to deal with the front axles, take the front diff from a early fwd impreza and put it in the awd tranny. not the whole ring and pinion just the spider gears and housing, that would give you the 23 spines that you need to use the ea81 axles. not 100% if that would work, but it was something i was thinking about the other day as i was looking at my tranny. now to just find a fwd impreza tranny and see if my idea would work. Link to comment Share on other sites More sharing options...
edrach Posted July 21, 2008 Author Share Posted July 21, 2008 I'm pretty sure I'll have custom front axles built for it. Link to comment Share on other sites More sharing options...
edrach Posted July 23, 2008 Author Share Posted July 23, 2008 Bump for information....I know there are some of you that have done the EJ conversion to an EA81 (Brat or GL wagon). I need input, drop me a link or something. Thanks. Link to comment Share on other sites More sharing options...
mellow65 Posted July 23, 2008 Share Posted July 23, 2008 i knew i had read something like this. http://www.ultimatesubaru.org/forum/showthread.php?t=72920&page=2 this one isn't into a ea81, but if you think about it you can use the drive line from a ea82 in the ea81 wagons and brats without modifying it. so one would think the same shortening would have to happen to the ea81 sorry it's not exactly what you are looking for but it's the best i could find. Link to comment Share on other sites More sharing options...
Numbchux Posted July 23, 2008 Share Posted July 23, 2008 I 100% know that the EJ 5MTs are a different length than the EA82 5MTs. so you're driveshaft will need to be modified. I don't remember which is longer though.... Link to comment Share on other sites More sharing options...
edrach Posted July 23, 2008 Author Share Posted July 23, 2008 I 100% know that the EJ 5MTs are a different length than the EA82 5MTs. so you're driveshaft will need to be modified. I don't remember which is longer though.... I'm prepared to do that. Just needed to know. Link to comment Share on other sites More sharing options...
mellow65 Posted July 24, 2008 Share Posted July 24, 2008 in the link i put it says he had to shorten the legacy one by 1 7/8" but it he wasn't a 100% sure if that was how much he took out. kingbobdole would be the man to ask. Link to comment Share on other sites More sharing options...
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