All Volvo live axle disc brake rear ends use type 30 diffs with 27 spline axles and the carriers will interchange.
There's no way to put a type type 27 rear end into 140 AFAIK. I'm curious to see what the PO did.
Perhaps he's confusing 27 spline axles with a type 27 diff (which would have 10 spline axles).
Who knows?
There is this:
http://gripperdifferentials.com/index.php?main_page=product_info&cPath=45_27&products_id=122
Volvo Amazon RACE Gripper Diff (10 Spline)
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Volvo Amazon RACE Gripper Diff (10 Spline)
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Volvo Amazon RACE Specification Gripper Diff
Gripper Multi-Plate Race Spec Differentials
Please let us know the number of splines on the driveshaft upon ordering. The default for this listing is 10 splines.
The Gripper Limited Slip Differential uses a multi-plate design which, when it detects a difference in wheels speed across the driven axle, locks the driveshafts together increasing traction. This increase in traction equates to faster launches and increased corner exit speeds as the wheels are no longer spinning as they would with an open diff. Torque is equalised across the driven wheels sending drive torque to both whereas an open diff will send the torque to the spinning wheel wasting drive in tyre smoke! Understeer and oversteer characteristics are controlled and your car laps faster as a result.
For a more detailed explanation on how a multi-plate limited slip differential works, please click the following link What is a limited slip differential?
Gripper Race Diffs: Free Tailored Set Up
As part of our customer service commitment, we will set your limited slip diff up FREE OF CHARGE before you take delivery. If the set up we apply does not suit you, we will reset your diff FREE OF CHARGE a second time within 30 days of receipt.
As Gripper diffs have many parameters that can be adjusted to set the diff up for a multitude of disciplines, please let us know in the notes to merchant section what you are using the diff for such as:
Tarmac Circuit Race Car: Smooth progressive action so car balance is maintained throughout the corner, strong locking action on acceleration for maximum traction and exit speed, reduced locking action in deceleration for improved control under braking without the car pushing on in the corners.
Loose Surface Rally Car or Ice Race Car: Limited deceleration locking action to reduced understeer and help with setting the car up early for a corner with a fast locking action on corner exit to maximise traction during acceleration.
Hillclimb / Sprint Car: Tarmac spec diff with focus on speed and strength of lock up to maximise grip without sacrificing the pointy and chuckable nature of these cars and minimise understeer in and out of corners.
Drift Car: Tarmac set up with the focus on speed and strength of lock up to help find the maximum lateral grip required in the car to achieve and maintain the acute cornering angles required to impress in competitive drifting.
Drag Race Car: Built to improve grip and traction off the line without introducing torque steer.
Oval Racing Car: Overall preload and numbers of active plates left to right can be adjusted to produce a diff that locks and unlocks quickly, combats understeer upon turn in and gives excellent lock for maximum traction when power is applied mid bend. A very different way of driving needs a very different diff set up!
The parameters than can be adjusted are the ramp angles, preload and the number of active plates overall
