Racer Z Posted December 2, 2009 Share Posted December 2, 2009 I swapped the input flange from my original R180 onto the STI diff. Does changing the input flange effect the preload? I've never been inside a diffy. What's involved in changing the input flange on the R180? Quote Link to comment Share on other sites More sharing options...
spawpoet Posted December 2, 2009 Share Posted December 2, 2009 Does changing the input flange effect the preload? I've never been inside a diffy. What's involved in changing the input flange on the R180? While I haven't swapped one before, I don't believe you have to crack open the diff to remove the flange. If I'm correct you simply remove the bolt on the front of the diff snout, and use a puller to remove the snout. The new flange should just press right in. Quote Link to comment Share on other sites More sharing options...
Zmanco Posted December 3, 2009 Share Posted December 3, 2009 While I haven't swapped one before, I don't believe you have to crack open the diff to remove the flange. If I'm correct you simply remove the bolt on the front of the diff snout, and use a puller to remove the snout. The new flange should just press right in. That's exactly how I did it. Side flanges are changed the same way. It's a lot easier with an air gun. Quote Link to comment Share on other sites More sharing options...
Racer Z Posted December 9, 2009 Share Posted December 9, 2009 That's exactly how I did it. Side flanges are changed the same way. It's a lot easier with an air gun. That will make the install a lot easier and less expensive. We have an air gun, STI LSD and stock diffy. I guess all we need is the new output shafts that John is working on. Quote Link to comment Share on other sites More sharing options...
galderdi Posted December 10, 2009 Share Posted December 10, 2009 Hi, I am super keen to get a set of the axles. I have an event in Easter 2010 and really need to get the diff converted by then. Otherwise I'll be travelling 700miles at 60 miles per hour doing 4000 rpm. Then at the event I'll be limited to 120 miles per hour at 8000 rpm. If I can get the conversion done I am hoping to hit 140 miles per hour. Any way I can convince you to sell me a set early? Quote Link to comment Share on other sites More sharing options...
johnc Posted December 11, 2009 Author Share Posted December 11, 2009 Any way I can convince you to sell me a set early? No way. Lots of folks ahead of you in the list and they've been very patient. Quote Link to comment Share on other sites More sharing options...
galderdi Posted December 11, 2009 Share Posted December 11, 2009 Fair enough. No harm in asking right? I think I might be stuck then. Here is a link to some pics of my car. http://s332.photobucket.com/albums/m327/greg_280z_BRE/Sprints%202%20Aug%2008/ Quote Link to comment Share on other sites More sharing options...
RebekahsZ Posted December 14, 2009 Share Posted December 14, 2009 Initial test results: First autocross with new WRX STi CLSD with betamotorsport (John Coffey's) axle adapter stub in my 240z. Took home first in class trophy. Closest competition (Mustang GT 4.6 was 4 seconds behind me). Everybody is shaking my hand and asking what I did to my car! I think they figure I went to a drivng school. Last month I wasn't even respectable. I have never had any other single more significant performance enhancement than LSD. I just can't describe the new-found confidence that I had when launching, accellerating out of turns. I've been grinning for 2 days. Quote Link to comment Share on other sites More sharing options...
proxlamus© Posted December 15, 2009 Share Posted December 15, 2009 LoL.. paid endorsement?! =) Thats great to hear it makes a big big difference!! Quote Link to comment Share on other sites More sharing options...
johnc Posted December 15, 2009 Author Share Posted December 15, 2009 Naaahhh, just another happy customer - so far. Keith hasn't run at a drag strip yet so no firm conclusions on the testing. Quote Link to comment Share on other sites More sharing options...
Icehound Posted December 15, 2009 Share Posted December 15, 2009 Initial test results: First autocross... Keep them guessing... Quote Link to comment Share on other sites More sharing options...
RebekahsZ Posted December 16, 2009 Share Posted December 16, 2009 Nope, John's not paying me. But I am still grinning! I'm just really stoked to have LSD after 20 years of Z ownership - it really seem that I am driving a totally different car. My old rearend was an open 4.11 out of the front of a 4X4 truck, unknown mileage. It made a lot of noise but really helped with accelleration over the 3.54 - when I had traction. At drags, drag radials solved the problem, but in the corners at autocross I always unloaded my inside wheel and gave up time. Now it is like, push down and hang on! The improved times speak for themselves. Quote Link to comment Share on other sites More sharing options...
RebekahsZ Posted December 21, 2009 Share Posted December 21, 2009 Ten 1/8-mile passes with John's axel stubs today. No troubles. Quote Link to comment Share on other sites More sharing options...
proxlamus© Posted December 21, 2009 Share Posted December 21, 2009 I was just teasin about the paid endorsement Ohh this is so exciting!! Quote Link to comment Share on other sites More sharing options...
Racer Z Posted December 21, 2009 Share Posted December 21, 2009 I've been savin' my Blue Chip Stamps for a rainy day. I predict rain in the near future. And I'm going to give em all to John. Quote Link to comment Share on other sites More sharing options...
roger280zx Posted December 22, 2009 Share Posted December 22, 2009 I can't believe I missed this at the beginning. I guess I'm moving to the back of the line. Quote Link to comment Share on other sites More sharing options...
Ricky Ricer Posted December 22, 2009 Share Posted December 22, 2009 I'm very interested in this. STI diffs are extremely easy to find here in Subaru Mecca (CO). Quote Link to comment Share on other sites More sharing options...
RebekahsZ Posted December 23, 2009 Share Posted December 23, 2009 Sorry I spelled axle incorrectly - at least I caught it on my own. More testing after Jan 1. I've got an open track on Dec 27, but all of you would need to send roses to my wife to make that happen. Quote Link to comment Share on other sites More sharing options...
RebekahsZ Posted December 28, 2009 Share Posted December 28, 2009 Testing report. 12 more 1/8-mile passes on John's prototype axle stubs with no troubles. Still married. Quote Link to comment Share on other sites More sharing options...
Racer Z Posted December 28, 2009 Share Posted December 28, 2009 Excellent! Quote Link to comment Share on other sites More sharing options...
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