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Diffs, LSD's and CV's

Kaaz R200 29 spline (2 way) LSD - locks on accelleration and locks on throttle off. New in box $1320 inc GST 

 

R180 Nismo 4.111 ratio LSD with 25 spline R 30 STYLE CV shaft adapters  $1800

 

 

R180 diff with 4.444 New Subaru gears open centre $700 

 

 

R180 CV adapter shafts (25 spline) suit Nismo/Nissan R180 centres $300/pair

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R180 CV kits and adapters $1490 with standard adapters or $1690 with dog type adapters

When we wanted best quality CV sets for a very heavy duty competition application we purchased some CV conversion set's and these did not meet the requirements for extreme competition use. As a result we have commenced manufacturing CV conversions of highest quality with reduced tolerances compared to others on the market. 

The reasons our CV sets are better are detailed in the table below-

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Theirs Ours
EN36 or 4140 steel used Tougher 4340 steel, heat treated to our specification. Shafts are plated and de-embrittled. 
Shafts have up to 3.5 degrees radial movement on splines, causing spline impact and potential shearing with on/off throttle Shafts are custom made for CV resulting in less than 0.5 degrees radial movement with shaft push fit on spline.
6061T6 alloy adapters for CV shafts. Alloy is soft for application and can pull threads needs Helicoils to strengthen threads 7500 series aircraft frame grade alloy used that is as tough as steel.
In conventional CV adapters, the diff inner bolts transmit the drive in single shear, also the wheel stub axle adapters use the same method. These commonly come loose in competition use. 

Click to enlarge.

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 Datrats CV adapters use a recessed square dog to transmit drive. With the dog action,  the bolts are only used to locate adapter on the dog. These drives are used on both inner and outer drive shafts. This is our own registered design and is not available elsewhere.

Click to enlarge.

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GEARBOXES rebuilt by Stan Holmes. The repair/restoration details are recorded and verifiable.  Only the best available materials were used in the restoration with no expense spared.
  • Components especially selected and checked for wear.
  • Critical components have been crack tested.    
  • Highest grade (lowest tolerance) bearings used.
  • Selector forks double roll pinned
  • Double mainshaft nuts independently staked.
  • Oil feed to rear of box modified
  • Stewart Warner brass synchroes fitted
  • All critical bolts lock wired
  • All new seals
  • Cases on all boxes Vaqua blasted
 Short R30 (Z geared) 660mm box $2000.

This box has a modified selector for a quick shift.

               

 

Six cylinder strength with 4 cylinder length.  This box fit 1600's etc in the standard position with no need to cut a larger hole for the shift lever. 
775mm Z box modified as above

$1900.

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