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Technical help

25 spline to 31 spline

Started by -Kenny- · 7 Sept 2008 · 15 replies

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-Kenny-Archived member
G'day, I have a 25 spline vl diff and I'd like to upgrade to 31 spline full spool. can this be done, and whats the cheapest way to go about it? any help would be most appreciated I had a search and couldnt find what i wanted but if someones got a link please feel free to put it up for me cheers Kenny
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vltnitronArchived member
hey mate i have a full spool 31 spline. doesnt cost too much. All you need is a set of moser 31 spline axles which cost around $700 and a romac spool wich cost around $450. just press new bearing on your spool and axles and bolt your crown wheel on spool. check you back lash and your all set.
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lil_timmyArchived member
Yeah i done exactly that, went from a 25 spline minispool to a 31 spline full spool with billet axles. Cost $1350 installed all up, very worth it if you ask me. If your planning on installing it yourself give this place a call and see what he can do, (02) 9891-5088 (James) and he might be able to send it up to you.
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boomArchived member
what about 31 spline LSD? $700 for a set of Moser axles isnt much more than a 28 spline diff.
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-Kenny-Archived member
thanks for the good info fellas Quote: vltnitron hey mate i have a full spool 31 spline. doesnt cost too much. All you need is a set of moser 31 spline axles which cost around $700 and a romac spool wich cost around $450. just press new bearing on your spool and axles and bolt your crown wheel on spool. check you back lash and your all set. yeah, thats wot i had in mind, got a quote off diff technics for axles + spool $1250 + 200 for bearings gaskets etc + got to get it frieghted.. he didnt mention brand names Quote: Yeah i done exactly that, went from a 25 spline minispool to a 31 spline full spool with billet axles. Cost $1350 installed all up, very worth it if you ask me. If your planning on installing it yourself give this place a call and see what he can do, (02) 9891-5088 (James) and he might be able to send it up to you. 08-09-08 09:59 $1350 installed? sounds better than wot i just quoted, however i'll be doing it myself. I tried calling him this arv but was probably too late, I'll try again tomorrow if i get a chance Quote: what about 31 spline LSD? $700 for a set of Moser axles isnt much more than a 28 spline diff. LSD would be great but i want it to be cost effective and reliable. $700 probly isnt much more than a 28 spline diff but its a matter of finding one, and for the money they ask your still only taking a punt on 20+yr old diff thats been flogged by hoon in a vl turbo.. but if one pops up i would definately consider it.. Some original photos have not been recovered yet.
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boomArchived member
any of the LSD centres found in borg warner diff'd commodores fit in the VL housing, so you could use a VN 4 pinion centre with 31 splines. if your building it yourself it would be good.
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tubbed1Archived member
vn centres r 28 spline also, i dont think u can get 31 spline lsd unless kazz make them??? actually cum to think of it, detroit locker do, but mega dollars hey
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-Kenny-Archived member
yeah i kno but some of them centres can be a pain in the arse to shim up. ive been using ford 25spline lsd centres and you need to put shims behind the actual ring gear which can be dodgy if ur putting out some power. its the same with vt centres not sure with the vn tho.
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boomArchived member
Quote: Originally Posted by tubbed1 vn centres r 28 spline also oh yer derr
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5spdvlArchived member
This may be of help: http://www.calaisturbo.com.au/showthread.php?t=133721 Quote: Originally Posted by -Kenny- G'day, I have a 25 spline vl diff and I'd like to upgrade to 31 spline full spool. can this be done, and whats the cheapest way to go about it? any help would be most appreciated I had a search and couldnt find what i wanted but if someones got a link please feel free to put it up for me cheers Kenny Why do you want to go for 31 spline?
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-Kenny-Archived member
Quote: Originally Posted by 5spdvl This may be of help: http://www.calaisturbo.com.au/showthread.php?t=133721 Why do you want to go for 31 spline? 25 spline arent strong enough and got to buy axles anyway so may as well get something half decent. Thanks Timmy for your info mate. i called James up today and his getting me the moser axles from the states, full spool + bearings/ seals, bearings pressed on, $1045 delivered. better than wot diff technics could do. cheers
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allmtrArchived member
Have you had this done yet? If so, do you recommend James?
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lil_timmyArchived member
I've had work done by James and so has my brother and i've also bought many minispools off him, i recommend him definately and his prices are good.
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allmtrArchived member
where is he at?
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lil_timmyArchived member
Harris Park. Right next to Parramatta in Sydney.
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-Kenny-Archived member
yeah the axles finally turned up after waiting over 4 weeks. I wont be putting them in till early december now. The service was satisfactory however i asked him to press all the bearings on which was part of the quote and he didnt. no reciept either
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