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will an 80 series lsd fit into rear 75 diff?

Tech Talk for Cruiser owners.

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Posts: 1908
Joined: Thu Aug 04, 2005 8:09 pm
Location: central queensland

will an 80 series lsd fit into rear 75 diff?

Post by known 2 »

as the question states,
does anyone know?

cheers
kaylee 2004 hdj78 RV. 33 mickey atz's, winchbar, 3i lift, 3i exhoust, spoties, roofracks and ufh. pimped interior .

86 lwb zook wt soa, 33's, locked, bard up, prety lights. monster tacho:/
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Location: Brisbane

Post by Tooheys »

yeah it will fit but the ratio's are slightly different im pretty sure. 4.1 for the utes and 4.11 for the 80 series
If at first you dont succeed.......get a bigger HAMMER!!!
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Post by DNA Off Road »

Tooheys wrote:yeah it will fit but the ratio's are slightly different im pretty sure. 4.1 for the utes and 4.11 for the 80 series
Correct
Stock 'Cruiser X 2
www.dnaoffroad.com.au
Posts: 1908
Joined: Thu Aug 04, 2005 8:09 pm
Location: central queensland

Post by known 2 »

i thought they may be to small as this is a 1985 ute with the big diffs,

but thats good news wich of those 2 is the lower ratio?
kaylee 2004 hdj78 RV. 33 mickey atz's, winchbar, 3i lift, 3i exhoust, spoties, roofracks and ufh. pimped interior .

86 lwb zook wt soa, 33's, locked, bard up, prety lights. monster tacho:/
Posts: 183
Joined: Wed Nov 12, 2003 4:52 pm
Location: Brisbane

Post by Tooheys »

higher the number lower the ratio. Alot of ppl say that its such a small difference that it is ok and others say that it will wind up the transfer case. I havent seen it first hand so i dont know who to believe.

If you have a HJ or FJ which is what it will be being an 85 it will still fit they are the same size. It will also fit in the front if you wanted to.
If at first you dont succeed.......get a bigger HAMMER!!!
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Post by eye-for-detail »

AlbyOne wrote:
Tooheys wrote:yeah it will fit but the ratio's are slightly different im pretty sure. 4.1 for the utes and 4.11 for the 80 series
Correct
Its not too important but its the other way around
4.11 (37 x 9) for ute/troopy and 4.1 (41 x 10) for 80 ser
LN106 d/cab, 2in lift, 32s, airlocker,
Posts: 1908
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Post by known 2 »

sweet well that saves me a locker , it was originaly a hj75 , will it make it hard on the front diff and transfer as they are all spining at diferent speeds now?
kaylee 2004 hdj78 RV. 33 mickey atz's, winchbar, 3i lift, 3i exhoust, spoties, roofracks and ufh. pimped interior .

86 lwb zook wt soa, 33's, locked, bard up, prety lights. monster tacho:/
Posts: 68
Joined: Wed Jun 01, 2005 12:36 pm
Location: Albany Creek

Post by keencdk »

The difference in ratio is about 0.2%. This is much lower than the difference if you had new tyres on the rear and half worn tyres on the front.

On a part time 4wd you won't have a problem as you are unlikely to be in 4wd on high traction surfaces like bitumen anyway. I have had a 70 series rear (has an ARB locker in it) in my part time 4wd 80 series for nearly a year and not a problem.
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