Home → Products → Pro-Am 34-1/4" Total Length 300M Porsche 934 Solid Axles 35 Short Splines For Micro Stub Brakes Only

Pro-Am 34-1/4" Total Length 300M Porsche 934 Solid Axles 35 Short Splines For Micro Stub Brakes Only

Racegear WA

$4,517.00 $4,742.85
SKU: RGWA-HAR34250

ProAm's 300M IRS axles are specially designed for the needs of today's off-road racers. The axles are machined from 300M steel alloy.

Specifications:
Material: 300m
Total Length: 34-1/4"
Clip To Clip Length: 33-3/4"
Spline Length Side A: 4"
Spline Length Side B: 3"

Measuring axle length for VW Stub axle, Micro Stub Axle, or Mid-Board Micro Stub Axle
  • Check your toe in/out wheel alignment.
  • Lift the hub up, so that if it did have an axle, the axle would be at zero degrees, parallel to the ground.
  • Measure from the BOTTOM of the drive flange cup on the transmission to the BOTTOM of the stub axle cup on the brakes. Reference Figure A
  • Subtract 1/4" to 3/8". That is your TOTAL axle length.
  • Check both sides of the vehicle. It is very common to have two different length axles.
  • Now use a PVC pipe as a mock-up axle. Cut grooves 1/4" down on either end into each end of the PVC for your clips. Install your CV joints and mock-up axle.
  • Lift the vehicle so the tires drop down to full droop.
  • Grab your mock-up axle and make sure that you have 1/4" to 3/8" free play. Reference Figure B
  • If you have 1/4" to 3/8" free play at zero degrees and at full droop then you're perfect.
how do you measure IRS axle length for micro stub and midboard micro stub disc brakes?
kartek off-road, offroad, porsche 934, 935


ProAm's 300M IRS axles are specially designed for the needs of today's off-road racers. The axles are machined from 300M steel alloy.

Specifications:
Material: 300m
Total Length: 34-1/4"
Clip To Clip Length: 33-3/4"
Spline Length Side A: 4"
Spline Length Side B: 3"

Measuring axle length for VW Stub axle, Micro Stub Axle, or Mid-Board Micro Stub Axle
  • Check your toe in/out wheel alignment.
  • Lift the hub up, so that if it did have an axle, the axle would be at zero degrees, parallel to the ground.
  • Measure from the BOTTOM of the drive flange cup on the transmission to the BOTTOM of the stub axle cup on the brakes. Reference Figure A
  • Subtract 1/4" to 3/8". That is your TOTAL axle length.
  • Check both sides of the vehicle. It is very common to have two different length axles.
  • Now use a PVC pipe as a mock-up axle. Cut grooves 1/4" down on either end into each end of the PVC for your clips. Install your CV joints and mock-up axle.
  • Lift the vehicle so the tires drop down to full droop.
  • Grab your mock-up axle and make sure that you have 1/4" to 3/8" free play. Reference Figure B
  • If you have 1/4" to 3/8" free play at zero degrees and at full droop then you're perfect.
how do you measure IRS axle length for micro stub and midboard micro stub disc brakes?
kartek off-road, offroad, porsche 934, 935