Guest Vince Posted February 17, 2003 Share Posted February 17, 2003 Im buying a 260z that is set up to accept a chevy 350 and a th-350 tranny. What i was wondering is how i would go about strengthening the chassis. I was thinking of a roll cage, and front and rear strut bars. Would this be adequate for about 400hp/torque? Also i wanted to know about the diff. on these cars. Are they all open or did some come with an lsd? Are there any easy lsd swaps from other z cars? Possibly from a 280z? Any help would be greatly appreciated. Quote Link to comment Share on other sites More sharing options...
Dan Juday Posted February 17, 2003 Share Posted February 17, 2003 Welcome to Hybrid Vince. You have found a wealth of information on your car here. All of your questions have been asked and answered many times before. I'll offer you some of my insites but I strongly recommend you devote a few hours to the search function. One thread is just inadiquate to give you enough info to make good decisions. First off, I would suggest you install an overdrive tranny instead of the th350. The rear gear ratios available to you are too high for comfortable highway speeds. 700r4, 200r4, 4l60, or manuals, T5, T56. Roll cage and strut bars will likely provide all the reinforcing you'll need. Many guys here have fabbed frame connectors and found that that is all they need. Rearends are a big subject here and you really need to do your homework on this one (read "search function"). Basic overview: 240's, 260's, 280's, had R180's, good to about 250 hp. 280Z's and 280ZX's had R200's, good to 400hp. Both are open diff's, but in an IRS (independant rear suspension) wheel loading is near equal so one-wheel burnouts are rare. There are other reasons for wanting an LDS though so I won't presume. LSD's were available on special models on 280ZX's and 300ZX's and are hard to find and/or spendy. The R200 LSD is basicly a bolt in. The later R230 LSD is a much more involved swap. Don't make a decision based on this. There are other issues to consider back there as well such as u-joints and CV-joints. Read, read, read. Also, are you going Scarab, JTR, or MSA? If can't answer that you need to back up and figure out what that means first before you address these other questions. Glad to have you onboard. 8) Quote Link to comment Share on other sites More sharing options...
Guest Vince Posted February 17, 2003 Share Posted February 17, 2003 Read' date=' read, read. Also, are you going Scarab, JTR, or MSA? If can't answer that you need to back up and figure out what that means first before you address these other questions. Glad to have you onboard. 8)[/quote'] Im not exactly sure which conversion kit was used, im gonna have to check back with the previous owner. I will definitely be spending time with the search function. Thanks for the help and the warm welcome. 8) Quote Link to comment Share on other sites More sharing options...
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