Author Topic: 8.4” Compared to 9.5” Strength?  (Read 103 times)

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abosely

  • Offline Dusty Trails
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8.4” Compared to 9.5” Strength?
« on: Jun 23, 2020, 07:41:16 PM »
Wasn’t sure how to word the question in the title.

I understand a 9.5” diff will be stronger than a 8.4” diff, it’s bigger. :-)

Trying to determine how close an 8.4” is to a 9.5”.

I’m building a 69’ Series IIA 100” Land Rover, Mercedes OM 603 turbo 3L diesel, LR R380 gearbox & LT230 TC. Will have about 280-300hp, 340 ft/lb torque, 33” (255/85R16) in future slight possibility of 36”x10” (900x16) tires, but that would be absolute max.

Not a rock climber or hard core rig, more of a overland go anywhere vehicle and relatively light, less than an FJ60.

I’m 99% sure I’m going to go with 8” HP for front. Will be using fabricated housings.

Rear will be FF, discs, RCV axles.

I know a 9.5” will be more than strong enough, but the 8.4” third member is interesting. Being physically smaller has advantages, little better ground clearance and just overall smaller package.

But I don’t know how relatively strong the 8.4” is. I don’t want to go smaller and regret it.

Could use some input to help decide between them.

Cheers, Allen

 
 
 
 
 

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