Whats the difference between Land crusier axle and the 79-85 toyota pu axle?
#1
Whats the difference between Land crusier axle and the 79-85 toyota pu axle?
i just bought a 1976 toyota landcrusier axle and want to know whats the difference between them two axle from a 1976 landcrusier axle to a 79-85 toyota axle b4 i eliminate my ifs from my 90 4runner to do a sas with the landcrusier axle? any information well help me and also please show me step by step on doing my sas conversion too i might need a lots of helps from yota team peoples.
#3
For your SAS try searching a little bit, here is an all Toyota Search Engine that hits over 50 Toyota technical sites.
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The Links below all offer kits and write ups too...
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Marlin Crawler
Trail Gear
#4
Contributing Member
DeathCougar - you're thinking rear and 80 series. I'm assuming this is front and 1976 will be an FJ40 axle.
The early Landcruisers are not listed on the usual site for diff info:
http://home.4x4wire.com/erik/diffs/
I'm sure it's on the Pirate FAQ, but I don't have it bookmarked here, will have to look it up when I get on later from home.
My guess is that it's an 8" third, a lot NARROWER than even an '85 axle, which is going to make it VERY much narrower than you rear axle... in other words, this may be about the worst choice for an SAS.
I would be remiss if I didn't ask why do you think you need a SAS anyways?
The early Landcruisers are not listed on the usual site for diff info:
http://home.4x4wire.com/erik/diffs/
I'm sure it's on the Pirate FAQ, but I don't have it bookmarked here, will have to look it up when I get on later from home.
My guess is that it's an 8" third, a lot NARROWER than even an '85 axle, which is going to make it VERY much narrower than you rear axle... in other words, this may be about the worst choice for an SAS.
I would be remiss if I didn't ask why do you think you need a SAS anyways?
#5
DeathCougar - you're thinking rear and 80 series. I'm assuming this is front and 1976 will be an FJ40 axle.
The early Landcruisers are not listed on the usual site for diff info:
http://home.4x4wire.com/erik/diffs/
I'm sure it's on the Pirate FAQ, but I don't have it bookmarked here, will have to look it up when I get on later from home.
My guess is that it's an 8" third, a lot NARROWER than even an '85 axle, which is going to make it VERY much narrower than you rear axle... in other words, this may be about the worst choice for an SAS.
I would be remiss if I didn't ask why do you think you need a SAS anyways?
The early Landcruisers are not listed on the usual site for diff info:
http://home.4x4wire.com/erik/diffs/
I'm sure it's on the Pirate FAQ, but I don't have it bookmarked here, will have to look it up when I get on later from home.
My guess is that it's an 8" third, a lot NARROWER than even an '85 axle, which is going to make it VERY much narrower than you rear axle... in other words, this may be about the worst choice for an SAS.
I would be remiss if I didn't ask why do you think you need a SAS anyways?
uh no, i am thinking 1976 Landcruiser. Since they did not start the 8" Hi-pinion until 1991 in the FJ-80, the 1976 FJ-40 cruiser will have the same 8.8 diff front AND rear that the FJ-60 cruiser had, albeit with a different ratio. In fact, they are the exact same diff and can be swapped front to rear and rear to front, just like on the trucks.
As for width, thats not correct either, as the Fj-40 front axle is either just as wide or WIDER than the mini-truck axle (i cannot remember the exact widths)
Last edited by DeathCougar; 04-15-2008 at 03:02 PM.
#6
Contributing Member
well for one thing i can tell you is the diff wont work. it has a diff ratio so you would have to do something about that. as for the width i dont think it matters unless it is a considerablely wider. but i think the largly different ratio would have a bad effect. that's just my 2 cents
#7
well for one thing i can tell you is the diff wont work. it has a diff ratio so you would have to do something about that. as for the width i dont think it matters unless it is a considerablely wider. but i think the largly different ratio would have a bad effect. that's just my 2 cents
the 1976 FJ-40 used a 4.11 ratio. If he has a 4.10 ratio in his truck, it will work and not affect anything.
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#8
Contributing Member
http://www.pirate4x4.com/forum/showthread.php?t=459180
From Pirate:
FJ40 axles are 57" front, 56" rear. FJ60 are 60". FJ80s are 63". You would want a 76 plus FJ40 axle--prior to that they had front drums. 1976-1978 were 4.11 R&P, 1979-1987 were 3.73, 1987-1997 were 4.11 again. In 1978, the pinions switched from 10 spline (weaker) to 30 spline. The birfs in 1976-1978 are slightly smaller than 1979-1990, which are same size as mini truck
ones. You can run Longfields in any of them.
Never thought 40's would be that wide - it's a better match than a minitruck front axle...
From Pirate:
FJ40 axles are 57" front, 56" rear. FJ60 are 60". FJ80s are 63". You would want a 76 plus FJ40 axle--prior to that they had front drums. 1976-1978 were 4.11 R&P, 1979-1987 were 3.73, 1987-1997 were 4.11 again. In 1978, the pinions switched from 10 spline (weaker) to 30 spline. The birfs in 1976-1978 are slightly smaller than 1979-1990, which are same size as mini truck
ones. You can run Longfields in any of them.
Never thought 40's would be that wide - it's a better match than a minitruck front axle...
#10
well my 76 landcrusier axle already came with shim perchs on top odf the axle so yeah no worry about that and back high steer instead of front on the axle. and for my gear ratios i have 5.29 yukon in the rear v6 axle. But i also did a reasearch on the axle ring size i saw most site was 8 7/8 on the differential ring gear, am i right or is it 8.8" ring size?
Also i just know finished my rear 63" chevy leaf swap. Just researching to see what i need to do on my sas swap.
well my friend told me that it don't matter if the landcrusier diff is a lil biggger because as long as i have the same gear ratios then it's all right. and he also told me that the bigger the diff. the better it can handle.
well if the landcruiser axle that i have s longer than the pu toyota axle then thats good i might not need wheel spacer right guys?
Also i just know finished my rear 63" chevy leaf swap. Just researching to see what i need to do on my sas swap.
well my friend told me that it don't matter if the landcrusier diff is a lil biggger because as long as i have the same gear ratios then it's all right. and he also told me that the bigger the diff. the better it can handle.
well if the landcruiser axle that i have s longer than the pu toyota axle then thats good i might not need wheel spacer right guys?
Last edited by 90_4runner; 04-16-2008 at 09:49 AM.
#12
Contributing Member
Rear axle is 58.5", the front is 57", so at most you would need 3/4" spacers, not the usual 1.5" spacers, but I probably wouldn't even worry about it. If you wanted the front wider than the rear, you could use your IFS hubs on the SFA.
#15
Contributing Member
I keep putting faith in that Toyota would never go backwards and have a subsequent generation weaker than before ... I knew the 80 series had 8" in the front and 9ish in the rear, so figured the earlier ones were 8" ...
But then, they DID change from a FF to a SF front end going from 95-96 ...
But then, they DID change from a FF to a SF front end going from 95-96 ...
#16
the landcruiser axle already had warn brand hubs so i dont really need the stock hubs.
But thanks DEATHCOUGAR im just making sure that im not mistaken the differentials ring gear so yeah when im ordering the yukon gear i should ask them for the 8.8" ring gear.
But thanks DEATHCOUGAR im just making sure that im not mistaken the differentials ring gear so yeah when im ordering the yukon gear i should ask them for the 8.8" ring gear.
#19
Research then buy will save you money in the future. While lots of things will fit and work on that axle I think the fact that it is not used among the masses should clue you in.
Some things that work are not necessarily the best viable option.
I think you are creating yourself a future headache(s).
Good luck!
Some things that work are not necessarily the best viable option.
I think you are creating yourself a future headache(s).
Good luck!