Beaver 8,744 Posted July 30, 2013 Report Share Posted July 30, 2013 rage. Not worth a last minute swap back to original diff for swapmeat? Quote Link to post Share on other sites
KKtrips 23,447 Posted July 30, 2013 Author Report Share Posted July 30, 2013 Nay went past the point of no return last night. It's not the end of the world. Just a bummer. Quote Link to post Share on other sites
MRWEST 2,448 Posted July 30, 2013 Report Share Posted July 30, 2013 i hate it when your aiming for something then a hickup/something you didnt expect occurs and throws the spanner in the works. Quote Link to post Share on other sites
nzstato 2,887 Posted July 30, 2013 Report Share Posted July 30, 2013 Is that a BW78? I have a feeling that the ones out of R31s are slightly narrower than commodore/falcon. Alot of the torana guys use them. Sources of ratios.... 2.77:1 some Falcons (possibly Fairlanes), I have heard that these may require a different housing2.92:1 also Ford stuff3.08:1 standard on VN-VS V6 and V83.23:1 VK 1/2 injected six3.45:1 VL3.7:1 R31 Skyline manual3.89:1 R31 Skyline auto - dodgy according to most people, noisy and possibly failure prone3.91:1 R31 Skyline auto supersedes above4.11:1 R31 Pintara(Other vehicles use some of these ratios, these are just the easiest sources) I also think that Ford/Holden went to the stronger 4 spider 28 spline late in production. Be careful that VK and VL have different diff offsets (though the total width is the same) Quote Link to post Share on other sites
KKtrips 23,447 Posted July 30, 2013 Author Report Share Posted July 30, 2013 Yeah it's a BW78 and totally happy with the ratio. Not sure what you mean by Diff Offset? My diff is a VP diff so 40-50mm wider than VH. Quote Link to post Share on other sites
nzstato 2,887 Posted July 30, 2013 Report Share Posted July 30, 2013 From GMH torana Another little secret is that while the VK 1/2 Borg Warner is the same width as VL, it has a different centre offset. This means that a VN short side axle will bolt straight in (may require minor trimming on the end, I've measured it but haven't actually built it yet). End result is a 28 spline (and disc brake) conversion using this housing only requires one axle to be shortened. You know you want to run 4.11:1 Quote Link to post Share on other sites
KKtrips 23,447 Posted July 30, 2013 Author Report Share Posted July 30, 2013 Ah I see - yeah that's for people with differing purposes to me. I definitely do not want to run 4.11 LOL Quote Link to post Share on other sites
nzstato 2,887 Posted July 30, 2013 Report Share Posted July 30, 2013 I'll stop talking out my arse then. Quote Link to post Share on other sites
Dolan 16,050 Posted July 30, 2013 Report Share Posted July 30, 2013 oh man, face dropped when I read this. wanted the start of Hot for Teacher in my earballs all weekend 2 Quote Link to post Share on other sites
Spencer 22,903 Posted July 30, 2013 Report Share Posted July 30, 2013 Hmmm, going to that wide diff seems fail just for a LSD? if you are changing driveshafts anyway Id rather weld mounts onto a diff that has the correct width? 3 Quote Link to post Share on other sites
KKtrips 23,447 Posted July 31, 2013 Author Report Share Posted July 31, 2013 I am not sure what you mean - the VP LSD diff bolts directly up to the original VH mounts and its just the extra width outside of the mounts that is 40-50mm - so 20-25mm per side plus a different (stronger) rear half of the driveshaft that needs to be sorted. Are you suggested that A: buying a correct width LSD diff and welding the factory mounts onto it or B: finding a factory VB-VK wagon LSD or C: getting the diff narrowed and axles shortened/resplined is easier and cheaper than a guard roll and making up an adjustable panhard rod? I reckon the guard roll and panhard rod is about 400 times easier than any of the other options. Quote Link to post Share on other sites
KIRK 5,483 Posted July 31, 2013 Report Share Posted July 31, 2013 or VL turbo diff is a narrower option if you ever find one Quote Link to post Share on other sites
KKtrips 23,447 Posted July 31, 2013 Author Report Share Posted July 31, 2013 Seen many VL turbo's in NZ? For that matter - seen many wagon versions of a VL turbo in NZ? Yeah good luck with that. Wag diffs are different to Sedans in the mounting points. Quote Link to post Share on other sites
Valiant 42,169 Posted July 31, 2013 Report Share Posted July 31, 2013 D. Find an LSD center and ratio that suits, install it into your housing. Retain your driveshaft flange, brakes,wheels, and housing. Quote Link to post Share on other sites
KKtrips 23,447 Posted July 31, 2013 Author Report Share Posted July 31, 2013 What part are people not getting??? I have a diff that fits but I need to roll the guards and make an adjustable panhard rod to count for the 20-25mm wider per side... Getting the driveshaft remodified will be about $250 and 2 weeks so no biggy. Finding a diff that is VB-VK narrow with an LSD that ALSO bolts into a wagon will take MONTHS and at least $300 or more. Finding a diff that is VB-VK narrow with an LSD and then having the mounts changed over will be at least a couple weeks and $500 or more. Quote Link to post Share on other sites
ryanfels 2,146 Posted July 31, 2013 Report Share Posted July 31, 2013 Get a whole new car to fit the diff 4 Quote Link to post Share on other sites
KKtrips 23,447 Posted July 31, 2013 Author Report Share Posted July 31, 2013 Fuck off. 2 Quote Link to post Share on other sites
Brock-Lee 3,298 Posted July 31, 2013 Report Share Posted July 31, 2013 That sucks balls about not making it to swapmate but I just wanted to say that this sounds so nice and I think you have done a stellar job! You feeling better now kk? Are you guys chasing swapmate seats now or daily lyfe? Quote Link to post Share on other sites
durty 4,493 Posted July 31, 2013 Report Share Posted July 31, 2013 Get a sedan, seems like it would be easier? I'm so sorry 1 Quote Link to post Share on other sites
KIRK 5,483 Posted July 31, 2013 Report Share Posted July 31, 2013 Seen many VL turbo's in NZ? For that matter - seen many wagon versions of a VL turbo in NZ? Yeah good luck with that. Wag diffs are different to Sedans in the mounting points. ah yeh I just read heaps on Australian things and so many guys run VL turbo diffs so I thought they were easy to find or something Quote Link to post Share on other sites
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