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| = Mad Dat = | = Mad Dat = | ||
| - | $2345 Product No - DIFR31: Diff Housing & Rear Disc Brakes | + | [[Mad Dat Diff|$2345 Product No - DIFR31]]: Diff Housing & Rear Disc Brakes |
| - | Shortened R31 28 spline. Rebuilt calipers, new wheel bearings, new seals, new U-bolts, new discs, new pads. Includes hand brake cables and brake lines. Shortened to your specifications. Calipers painted red or black. This item is an empty shell and needs one of the below items to go with it. | + | Shortened R31 28 spline. Rebuilt calipers, new wheel bearings, new seals, new U-bolts, new discs, new pads. Includes hand brake cables and brake lines. Shortened to your specifications. Calipers painted red or black. This item is an empty shell and needs one a gearset fitted. |
| - | + | ||
| - | * $1,550 Product No - DIFSTAN Diff - Minispool. Upgrade to Minispool includes new gears. Choice of ratio 3.91, 4.10 | + | |
| - | * $2,900 Product No - DIFKAAZ Diff - KAAZ LSD. Upgrade to KAAZ 2 way LSD includes new gears. Choice of ratio 3.91, 4.10 | + | |
| = Shortening = | = Shortening = | ||
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| <br>neither me or him have ever has a problem with using the axles in reverse. both in daily driven turbo cars for over 3 years.</blockquote> | <br>neither me or him have ever has a problem with using the axles in reverse. both in daily driven turbo cars for over 3 years.</blockquote> | ||
| - | Or buy a completely rebuilt shortened unit ready to fit into a 1200 for $2345 AUD from Maddat. | + | Or buy a completely rebuilt shortened unit ready to fit into a 1200 for $2345 AUD from Maddat: [[Mad Dat Diff]]. |
| = Comparo = | = Comparo = | ||
Revision as of 01:28, 19 April 2013
Australian-built R31 Skyline/Pintara came with a Borg Warner 78 diff (198 mm ring gear). The ring gear (CRP) is strong, about as strong as the H190 in the Datsun pickups.
Also see Borg Warner 78
Contents |
Overview
R31 Rear Disk Brakes
BW78 axle narrowed and installed in 1200
BW78 into 120Y
R31 into B310
Swap Notes
Converting To Leaf Spring
Creating Leaf Spring pads
Lowering Spring Pads
Handbrake Cable
Handbrake cable considerations
Mad Dat
$2345 Product No - DIFR31: Diff Housing & Rear Disc Brakes
Shortened R31 28 spline. Rebuilt calipers, new wheel bearings, new seals, new U-bolts, new discs, new pads. Includes hand brake cables and brake lines. Shortened to your specifications. Calipers painted red or black. This item is an empty shell and needs one a gearset fitted.
Shortening
The BW78 can be easily shortened. Shorten the long tube to the same length as the small tube. Machine and respline the long axle down to length. The diff wont be centered, normally the diff is offset a bit to the driver's side, but in doing it this way it offsets it to the passenger side. It's the cheapest way to do it and its fine. The R31 diff has the centre pretty well in the middle of the housing, meaning the pinion is slightly off to one side. When shortening it swapping axles and just cutting down the long axle it ends up with the whole centre off to one side but the pinion is still only slightly off centre, just in the opposite direction to what it started.
$900 to $1600 AUD for this shortening which also includes a remachined axle, and welding on leaf spring plates. It does not include new bearings or LSD or new brakes.
Or if you do it yourself, it's only $50 for an additional good used short-side axle and some work cutting/welding. Some say you shouldn't use a left-side axle on the right (or vice-versa) but hundreds of folks have had no problems.pigdog:
neither me or him have ever has a problem with using the axles in reverse. both in daily driven turbo cars for over 3 years.
Or buy a completely rebuilt shortened unit ready to fit into a 1200 for $2345 AUD from Maddat: Mad Dat Diff.
Comparo
M78 vs H165 Ute
Photo Index
