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ri0
09-12-2006, 10:09 PM
my buddy just got long fields...30 spline ones...anyways I wana build him a landcruser diff with 5:29's....do the longfields from the p/u axel work with the cruser axel?

with the longs...his weekest link is now his R&P

Tmax
09-12-2006, 10:19 PM
arent the ring an pinion on crusers way bigger than the pickup ones?

exo_toy
09-12-2006, 11:04 PM
yupper cruisers are 9.25"
p/u are 8"
and alot of the crusier axles are offset front and rear.

Big_Ern
09-12-2006, 11:08 PM
depends what cruiser the axle is out of. Some are the same, some are bigger. I can't remember which ones though

Tmax
09-12-2006, 11:10 PM
all the old crusers before 90 had big axles

EIEIO
09-13-2006, 09:13 AM
60 had a 9.5"
40 had a 8"

They are different than the pickup diffs. I dont believe they will work, I had out Ken's front end and its way beefier than pickup stuff. [cheers]

Tmax
09-13-2006, 09:54 AM
60 had a 9.5"
40 had a 8"

They are different than the pickup diffs. I dont believe they will work, I had out Ken's front end and its way beefier than pickup stuff. [cheers]

they all had the big axle. i've you've seen one with the smaller axle, it's been swaped.

sj-x 500
09-13-2006, 10:09 AM
80's have the best axle outta the bunch if i am not mistaken...

70's are hard to find, but are 8 inch like the pickups, and have an off set rear. if anyone finds one of these... lemme know

Pudge
09-13-2006, 10:18 AM
69-75 fj 40/55 take takes them same rebuild kit
75-90 fj40/55/60 take the same rebuild kit as the 79-85 pick ups
90 and on fj 80's take a different kit

hope that helps???

Tmax
09-13-2006, 10:22 AM
69-75 fj 40/55 take takes them same rebuild kit
75-90 fj40/55/60 take the same rebuild kit as the 79-85 pick ups
90 and on fj 80's take a different kit

hope that helps???

thats the reubuild kit for the knokle. right?

Pudge
09-13-2006, 10:30 AM
yes

StinkFinger
09-13-2006, 10:56 AM
the short side axle is about 4" longer on a cruzer diff but the spline counts and birfs are the same so your 30 spline longs will not work with out custom length inner shafts
the eraly diffs use a 10 or 12 spline pininon and a corse spline birf as well the entier outter fron the nuckle out is exactly the same exept some cruzers use smaller weeker steering component

this is not book or web info this is what i have found from actualy taking them apart and working on them

Tmax
09-13-2006, 11:37 AM
good info but you still didint clear up witch ones have the bigger ring gear.

StinkFinger
09-13-2006, 12:19 PM
but the question was will the minny truck longs fit in a cruser axle and unless you have an axle strecher no they wont

Tmax
09-13-2006, 01:09 PM
he did mention that after the upgrade, the weakest link would be the ring an pinion. thats how it started. now how about your share your wisdom with us.

StinkFinger
09-13-2006, 01:40 PM
id keep the pick up hosing throw in a v6 carior and some cryoed gears

Big_Ern
09-13-2006, 02:16 PM
but the question was will the minny truck longs fit in a cruser axle and unless you have an axle strecher no they wont

but, bobby will custom make the axles shafts to any length you want. so yes they could fit assuming the 3rds & hubs have the same spline count

Big_Ern
09-13-2006, 02:17 PM
id keep the pick up hosing throw in a v6 carior and some cryoed gears

as far as I know, no one sells cryo'd gears for v6. Altho longfield will cryo any gear set, so you could buy the gears and send them to him, but that gets more $$$

StinkFinger
09-13-2006, 02:20 PM
the third and the hubs have the same splin and diamiter bu he already has the shafts so hell need new ones or to narrow the housing

Big_Ern
09-13-2006, 02:53 PM
oh yah, I missed the part that he's already got the longs...

trevyota
09-13-2006, 04:57 PM
he could just give me the 30 splines and get new one's for the cruiser.

ri0
09-14-2006, 07:34 PM
so looks like best bet...is gonna be to buy new longs for the nex axel, then I buy his old ones...thow them in my truck = )

FZJ80
09-17-2006, 01:49 PM
Did he get the birfs AND the axle shafts or just the Birfs.
If he has only the birfs then i think he is ok, cause he can use the 80 series Cruiser axle shafts in the mini birfs.
When i say Birfs i mean the long field joints.
Vince

Big_Ern
09-17-2006, 03:47 PM
are the 80 series shafts 30 spline from the factory?

FZJ80
09-17-2006, 08:33 PM
YUP.