R31 DIff into ae86

[DRFTR86]

just wanting to know what needs to be done, obviously all the trailing arm mounts, shock mount and spring seats, what else nees to be done,

shortening??
are they strong??
is it just any old R31 Diff???
they are borg warner diffs right???
are the the same as VL diffs, just 4 x 114.3??
and what spline are they???

if anyone has done it, can you please post pics

Cheers in advance

[Blown86]

Short answers:

Yes
Yes, pretty strong
Use 28 spline, 4 pinion
Yes, BTR78
Yes, VL are 28 spline etc
have a guess

Check out this link.

[puzzigully]

NA vls are 25 spline, same as r31 pintara
VLT and all skyline r31s are 28 spline

manuals are 3.7
autos are 3.9
pintaras are 4.11 regardless of trans

the LSDs are useless, better than a one legger but not much better.

kaaz make a 2 way, but requires machining to the pinion gear to make it fit.

[StockAE86]

I'm not really answering your question here but i have to mention that stock R31 rear calipers are crap.

I havent had good experiences with them, the handbrake always sticks on, very annoying.

[puzzigully]

yes they are shithouse

vb-vs calipers bolt on, are the same but without the lever handbrake mechanism.

[DRFTR86]

<div class='quotetop'>QUOTE (Blown86 @ Jun 15 2008, 07:35 PM) </div>
cheers, now blown 86, u say use the 28 spline 4 pinion version, does the pintara crown and pinion fit into this, as i wouldn't mind a 4.11:1 with stronger 28 spline axles, can that be done???

if anyone in melbourne reads this, who do they recomend??

[DRFTR86]

<div class='quotetop'>QUOTE (racsov500 @ Jun 15 2008, 08:55 PM) </div>what actuates the handbrake then, internal shoe type, ie. like a falcon, i work at ford so yeah.

will a hydro handbrake fix this problem

[Blown86]

<div class='quotetop'>QUOTE (drftr86 @ Jun 15 2008, 07:43 PM) </div>
yep, that's what I did although aftermarket, the lsd diffs are 28 and 4 and came in the pintara so you can get the 114.3 pcd axles.
You can use any of the CWPs with the lsd centres.

BTW aren't VP to VS rear brake callipers handbrake?
I'm sure at least the VR ditched the banskia handbrake and used handbrake callipers??

[DRFTR86]

sweet, so thats the go, its gonna be behind a ca18det and minispooled, so the calipers that are the go are vb - vl, are vl and 31 rear calipers the same by any chance???

still need to know does a hydro handbrake fix this

[Blown86]

Not sure about VL and R31 callipers being the same, if you go hydraulic handbrake doesn't matter,

Ratcheting hydraulic hanbrake...


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