Rittmeister Posted August 27, 2020 Share Posted August 27, 2020 So, if anyone saw my other thread (here), I've been chasing a front end clunk. After replacing everything up there, and determining that everything is good and tight, I had a buddy over who's smarter than I am. He helped me check things over and he thinks it's the front left strut itself. I picked up a mechanic's stethoscope and I'm inclined to agree. I'm running the Bilstein JDM GT Rev.A, as verified by part numbers on the strut bodies. I got them used here on the board and I think they decided they were done soon after going on my car. Here's my question - has anyone ever replaced these struts with USDM Bilstein Spec B shocks? The Spec B units are readily available, whereas I'm not sure I can source the JDM shocks. I'd probably just replace the front two, the rears seem fine. I believe that the JDM upper spring perches and top mounts are the same as the Spec B so there should be no issue there. I'm wondering specifically about A) ride height change with the JDM springs - I don't know if the Spec B lower perch is located higher or lower than the JDM - and B) ride quality change. Anyway - any help appreciated. Thanks in advance. Link to comment Share on other sites More sharing options...
Max Capacity Posted August 27, 2020 Share Posted August 27, 2020 Have you reached out to...say....the manufacturer. I'm sure customer support at Bilstien may know the answer. Look them up on the web. 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
Rittmeister Posted August 27, 2020 Author Share Posted August 27, 2020 (edited) Well... as it happens... I did. The people at Bilstein in CA don't have the JDM part numbers anywhere in their catalogs, and the guy was super helpful/knowledgeable and spent close to a half-hour with me trying to find out the info I wanted. So, I came here, hoping someone might have actually had to replace their JDM Bilstein with USDM SpecB/B6 hardware and would have empirical knowledge of the situation. I have an email in directly to Bilstein in Germany in hopes they could tell me but I only speak English and I have no idea how quickly to expect a response. Really hoping someone here might have this knowledge. Any help much appreciated. Edited August 27, 2020 by Rittmeister Link to comment Share on other sites More sharing options...
Max Capacity Posted August 27, 2020 Share Posted August 27, 2020 AVOturboworld Years ago that was a site that had lots of knowledge may be that might still work. https://avoturboworld.com/ 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
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