Pastytits Posted August 16, 2014 Share Posted August 16, 2014 Ive got a 2001 bugeye wrx with a stripped 2nd gear and I need to know what differences there are between a 1994 sti jdm import gearbox with center and rear diff coded Ty752vb3aa and a bugey 2001 wrx gearbox.Ive done loads of searching and found out it will bolt up, and center shaft will fit. I also know it will be a shorter ratio and may need sensors and wire plugs swapping around.Will 2001 bugeye wrx front and rear driveshafts fit the 1994 sti jdm gearbox??? or will I need matching shafts.If I need matching shafts, will they fit the bugeye wrx hubs?. If not can I swap cv joint? Make 1 set of shafts out of 2?I know its a specialist question but i dont want to start the job and be left with my hands on my head lol.Any info at all will help Quote Link to comment Share on other sites More sharing options...
Ash007ks Posted August 16, 2014 Share Posted August 16, 2014 it will be alot less heartache just to get the same one, as the WRX and the classic STI gearboxs are basically same, the boxes only get stronger on the 6 speed STI's Quote Link to comment Share on other sites More sharing options...
savage bulldogs Posted August 16, 2014 Share Posted August 16, 2014 Assuming your bugs a uk version you won't be able to run the classic jdm box with your uk diff due to the ratio's being different (it will wind the diffs up) The classic box can be made to work by changing your existing bugeye r160 3.5.4 ratio diff for a classic jdm short ratio r160 diff .just Google the classic box ty number to find it's ratio and buy a matching ratio classic or newage r160 diff . You'll have to change the speedo sensor over as early classic will be mechanical and after 96 is electronic and mabye the reverse/neutral position switch wiring (black and grey plugged loom) The female drive shaft ends ( inner front cv's) on your existing bug driveshafts will fit to any 5 or 6 speed from 93 till to blobeye . It's the outter cv's that differ , although after 04 you have to use a stub axle to convert the later boxes to take the earlier female shafts . By far the easiest and strongest option (without paying out for a 6speed) would be to google your bugs original gearbox ty number to get the ratio and buy a bug or blobeye 5 box .as the blobeye boxes have been known to handle a bit more power than a 15 +year old classic box and you could leave the diff alone . Best of luck bud 1 Quote Link to comment Share on other sites More sharing options...
Pastytits Posted August 16, 2014 Author Share Posted August 16, 2014 it will be alot less heartache just to get the same one, as the WRX and the classic STI gearboxs are basically same, the boxes only get stronger on the 6 speed STI's Thanks for reply mate, wasn't concerned about strength just want 2nd gear again. Lol Quote Link to comment Share on other sites More sharing options...
Pastytits Posted August 16, 2014 Author Share Posted August 16, 2014 Assuming your bugs a uk version you won't be able to run the classic jdm box with your uk diff due to the ratio's being different (it will wind the diffs up) The classic box can be made to work by changing your existing bugeye r160 3.5.4 ratio diff for a classic jdm short ratio r160 diff .just Google the classic box ty number to find it's ratio and buy a matching ratio classic or newage r160 diff . You'll have to change the speedo sensor over as early classic will be mechanical and after 96 is electronic and mabye the reverse/neutral position switch wiring (black and grey plugged loom) The female drive shaft ends ( inner front cv's) on your existing bug driveshafts will fit to any 5 or 6 speed from 93 till to blobeye . It's the outter cv's that differ , although after 04 you have to use a stub axle to convert the later boxes to take the earlier female shafts . By far the easiest and strongest option (without paying out for a 6speed) would be to google your bugs original gearbox ty number to get the ratio and buy a bug or blobeye 5 box .as the blobeye boxes have been known to handle a bit more power than a 15 +year old classic box and you could leave the diff alone . Best of luck bud Thanks mate that's just the info I was after much appreciated. Just to add The bug is a uk version, The diifs and shafts are included, The gearbox and diffs are 30k since rebuild, (bug box on 110k and been whining since ive owned it.) Wasn't going for strength just get it fixed with main priority being as cheap as possible lol. £ 100 vs 300plus also a side bonus of shorter ratio :) my thinking is that may lower stress on box? In my brain it will anyway haha Anyway so if the outer cvs differ what will be different about them? Abs ring location? Could I swap outer cvs? In other words make 1 set of shafs out of the bug and classic shafts? Soz to bombard you with Qs. Thanks mate Darren Quote Link to comment Share on other sites More sharing options...
savage bulldogs Posted August 17, 2014 Share Posted August 17, 2014 No problem fella , we like to help if poss The 93 jdm didn't have abs and there's 3 different types of outer cv's on the classics alone, but the inner gearbox stub axles remain the same till 04 Im unsure if the splines are the same on the drive shafts themselves, but your bug shafts will be the same lenght (from inner cv to outter cv) and will fit onto the 93 boxes stub axles . In other words just use the whole bug shafts /cv's. The main difference between the rear diffs is ratio and "R" number. With the hubs it's the "R" number and outter cv that differs . R160 classic /newage uk turbo and wrx R180 97 sti's to newage sti's (slightly stronger) the jdm shorter ratio's do make them rev high on the carriage way so you'll probably notice a bit of a dip in mpg . The only thing that I'm not 100 % sure about is the inner rear cv's and whether they will definitely fit the classic diff . As I haven't played with anything but classic rear diffs .so it might be worth offering up the diff to the rear shafts or cross referencing the rear inner cv's part numbers . I know 93 to 02 boxes , front drive/prop shafts, wiring clutch slave flywheel ect ... are all compatible as I've fitted a 02 box to a 93 car [emoji6] Keep us updated . Cheers clive 1 Quote Link to comment Share on other sites More sharing options...
Ash007ks Posted August 17, 2014 Share Posted August 17, 2014 Savage is alot more experienced when it comes to gearboxes :) he's the man to listen to. Quote Link to comment Share on other sites More sharing options...
savage bulldogs Posted August 23, 2014 Share Posted August 23, 2014 Hi Darren how's the box conversion going ? I've found myself in need of a early mechanical speedo sensor and wondered if the one out of the jdm box was any good (as they sometimes snap upon removal) If so how much do you want for it ? Best of luck Clive Quote Link to comment Share on other sites More sharing options...
Pastytits Posted August 24, 2014 Author Share Posted August 24, 2014 Hi Darren how's the box conversion going ? I've found myself in need of a early mechanical speedo sensor and wondered if the one out of the jdm box was any good (as they sometimes snap upon removal) If so how much do you want for it ? Best of luck Clive Hi mate. Just started it today, got the box and diff off. Il be putting it back together tomorrow I noticed there was 1 sensor missing off the classic box, il check in the morning and get bk to you mate. If you still needed it? And if its there you can have it for posting cost mate. Quote Link to comment Share on other sites More sharing options...
savage bulldogs Posted August 24, 2014 Share Posted August 24, 2014 Cheers chap much appreciated  I've got to retro fit a mechanical speedo sensor into a 6speed soon [emoji6] Quote Link to comment Share on other sites More sharing options...
Pastytits Posted August 26, 2014 Author Share Posted August 26, 2014 Cheers chap much appreciated  I've got to retro fit a mechanical speedo sensor into a 6speed soon [emoji6] Hi mate the speed sensor was missing off the classic sti box, sorry I couldn't help you out and return the favour for the info you gave me when I was stuck. All went well with my gearbox and diff replacement. The rear diff turned out the be lsd and luckily I had the matching shafts which were needed. As the passenger rear shaft got the lsd pickup. Drives a million times better with the 4.11 lower ratio as im in the valleys its much less dropping gears to stop engine shudder. Very happy with it for £100 was a bargain. Thabks for info again mate. Anyone else reading this, Info. Classic gearboxes and diff with matching rear shafts will fit a bugeye no prb at all. Quote Link to comment Share on other sites More sharing options...
savage bulldogs Posted August 26, 2014 Share Posted August 26, 2014 Your welcome mate[emoji106] No problem about the speedo sensor ,I only wanted a spare in case I broke mine on removal glad it all come together and your happy with the end results [emoji41] Quote Link to comment Share on other sites More sharing options...
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