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Diff Centre Swap
Posted: Thu Jun 22, 2006 4:12 pm
by DIRTY ROCK STAR
Does an 80 series rear centre fit in a 40 rear housing?
and if yes, can it use the same axles??
cheers..
and if anyone says to search i will donkey slap them.
DRS
Posted: Thu Jun 22, 2006 4:30 pm
by RAY185
Was told once that the centre will fit but the side gears are different and need to be changed to accept 40 axles. However I pulled out a rear axle and tried it in an 80 centre and it fit perfect so I'm leading towards a big fat YES but lets see what other have to say. We are talking full floater rear on the 40 arent we?
Ray
Posted: Thu Jun 22, 2006 5:38 pm
by eye-for-detail
as ray said with the full floater and yes it will fit
80 ser are 41x10= 4.1 ratio
40,55 ,60, 75 are 37x9=4.11 ratio
Re: Diff Centre Swap
Posted: Thu Jun 22, 2006 6:56 pm
by tuff 45
DIRTY ROCK STAR wrote:Does an 80 series rear centre fit in a 40 rear housing?
and if yes, can it use the same axles??
cheers..
and if anyone says to search i will donkey slap them.
DRS
I put a 80 series LSD in the back of my 40 with the 40 crown wheel and pinion and the axels went str8 in, they are the same.
Posted: Thu Jun 22, 2006 7:43 pm
by dow50r
LOL
I put a 60 centre in my 80...with 5.29 gears...straight in....
A guy with a 1995 troupy busted his diff at Appin, it was an old 60 diff centre....yes they go straight in...if your 40 was semi floating as in early std diffs, it wouldnt...
Posted: Thu Jun 22, 2006 8:27 pm
by TYLER
im guessing that the 5.29 out of the 60 was std????
Posted: Thu Jun 22, 2006 8:34 pm
by DIRTY ROCK STAR
cheers guys thats what i like to see, quick accurate info
AND you all said YES, that means i can go buy stuff! SHWEEEET!
cheers!
Posted: Thu Jun 22, 2006 9:32 pm
by bad_religion_au
DIRTY ROCK STAR wrote:cheers guys thats what i like to see, quick accurate info
AND you all said YES, that means i can go buy stuff! SHWEEEET!
cheers!
as long as they're not factory locker centers, then yes they'll work. your pinion flange might be a different bolt pattern
Posted: Thu Jun 22, 2006 10:23 pm
by dow50r
TYLER wrote:im guessing that the 5.29 out of the 60 was std????
Nah...to get 5.29, you need a 37 ring and a 7 pinion....which all fits in a 60 housing. Front 80 gears were from the states.
Andrew
Posted: Thu Jun 22, 2006 10:48 pm
by bad_religion_au
dow50r wrote:TYLER wrote:im guessing that the 5.29 out of the 60 was std????
Nah...to get 5.29, you need a 37 ring and a 7 pinion....which all fits in a 60 housing. Front 80 gears were from the states.
Andrew
is that a mix of factory bits (the 7 tooth pinion and 37 tooth ring)? or custom made/ aftermarket?
Posted: Thu Jun 22, 2006 10:51 pm
by dogbreath_48
So will a detroit from a 75 fit an 80?
Posted: Fri Jun 23, 2006 10:02 am
by cloughy
bad_religion_au wrote:dow50r wrote:TYLER wrote:im guessing that the 5.29 out of the 60 was std????
Nah...to get 5.29, you need a 37 ring and a 7 pinion....which all fits in a 60 housing. Front 80 gears were from the states.
Andrew
is that a mix of factory bits (the 7 tooth pinion and 37 tooth ring)? or custom made/ aftermarket?
Crown wheel and pinions are matched sets and the different tooth counts won't mesh
Posted: Fri Jun 23, 2006 12:59 pm
by midi73
dogbreath_48 wrote:So will a detroit from a 75 fit an 80?
I am putting an ARB locker into a 75 out of an 80. I just need to use the 80 bearings.
Posted: Sat Jun 24, 2006 11:37 pm
by bad_religion_au
cloughy wrote:bad_religion_au wrote:dow50r wrote:TYLER wrote:im guessing that the 5.29 out of the 60 was std????
Nah...to get 5.29, you need a 37 ring and a 7 pinion....which all fits in a 60 housing. Front 80 gears were from the states.
Andrew
is that a mix of factory bits (the 7 tooth pinion and 37 tooth ring)? or custom made/ aftermarket?
Crown wheel and pinions are matched sets and the different tooth counts won't mesh
thought that, but considering he made special mention of the front being aftermarket, wondered what was going on with the rear