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Constant Diff Bolt Breakage


RIP85

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  • REST IN PEACE V8
  • Donating Members
  • Member For: 16y 8m 2d
  • Gender: Male
  • Location: Woodridge on the park bench

hi torque drop diff cradle delete the center bolt replace diff hat then weld to mounting brackets to cradle then mount to chassis for 3g might be the go

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  • REST IN PEACE V8
  • Donating Members
  • Member For: 16y 8m 2d
  • Gender: Male
  • Location: Woodridge on the park bench

Never broken a cv touch wood the car does jerk a bit at certain low revs due I cams only thing I can put it down to mal wood re commends running 27psi in tyres but I'm not keen on that

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  • REST IN PEACE V8
  • Donating Members
  • Member For: 16y 8m 2d
  • Gender: Male
  • Location: Woodridge on the park bench

Would have to agree I'm no good at welding might drop cradle my self and get some one to weld mounts etc I reckon your paying more for the r and d

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  • Dropping a turd
  • Gold Donating Members
  • Member For: 17y 1m 26d
  • Gender: Male
  • Location: Perth

The whole diff assembly is a poor design. The main rear bolt see's a severe bending load. Bolts are designed to be used in tension. Having soft bushes especially at the front will allow diff movement and put more stress on the bolt.

One of my diff bolts.

DSCF1562.jpg

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  • Silver Donating Members
  • Member For: 19y 5m 15d
  • Gender: Male
  • Location: OZ

Any suggestions on products etc Aaron that have seen less breakages. I don't care for comfort...prefer strength.

I have a solid rear center bush, factory bolt and all other bushes stock, yet broke a inner LHS CV changing into 2nd with MT's.

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  • Moar Powar Babeh
  • Lifetime Members
  • Member For: 19y 3m
  • Gender: Male
  • Location: Perth

Cv broke due to driveline angles. Softer front bushes will also allow the diff to pivot and make the driveline angles worse.

Solid race spec superpros and some decent bolts (can source them from caterpillar for you) and you wont have any issues, but by fark it will be noisy!

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