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Old 10-17-2007, 07:45 PM   #1 (permalink)
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Smile Toyota Axles in a Jeep

DON’T SHOOT, I thought that I would post this here as apposed to the hardcore form because I would get an ear full. Anyway I am in the process of swapping in a front and rear 8” axle’s from a 1983 Toyota Truck into my Jeep YJ and wanted to know if anyone had done this swap before and had any pictures or info, I have done a search but dident get very much. If not don’t bother I know “Toyota axles in a Jeep WTF” and if you do I would appreciate if you could post them.

Thanks
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Old 10-18-2007, 01:33 AM   #2 (permalink)
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I thought about it briefly before I sold my sami. My conclusion was that they are too narrow and you need a pass t-case. I didn't want to get that deep into building my YJ. I know you can widen the front axles out by a few different methods, but that puts alot of stress on the kingpins having the wheels that far out. I think they'd be ok in a flatty or a narrow track CJ, but not so much in a YJ. Just my opinion.
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Old 10-18-2007, 03:51 AM   #3 (permalink)
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I am using Yota axles in my YJ, I went with a FJ60 front and 4runner rear, and im linked front and rear though.

If you look at my build thread i have some pics, but my camera died so i havent gotten any new pics yet.

And the Pass side drop was no issue to me as i am also running a 4.3 with a sm465/np205 behind it.
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Old 10-18-2007, 05:28 AM   #4 (permalink)
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Hay alcolade did you run offset wheels and if so how much offset and how much backspacing?
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Old 10-18-2007, 06:21 AM   #5 (permalink)
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As of now, i just am running a set of 15x10 with with 3.75 bs on them, once i get some 38s and beadlock them ill get all the little things worked out. The jeep is not done yet. im trying to get a new camera so i can get back to more documenting and take some more pictures of everything. I think where im going to need to make everything even is a 1.5 spacer in the rears, or just make some rims to correct it.
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Old 10-20-2007, 05:23 PM   #6 (permalink)
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I have Toy axles in a Jeepster, sprung over. Here's a link to my build, not very well documented but some pics.

http://nsjc.proboards38.com/index.cg...ead=1179720093
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Old 10-20-2007, 06:04 PM   #7 (permalink)
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Hay there Hawks very nice build this is what I was looking for someone thinking outside the box. I have 2 questions for you one is what type of wheels did you end up running because the Toyota axle is 55.5” WMS to WMS, did you end up running a wheel with a lot of offset? And the second question is did you change the pinion and caster angle on the front axle?

My plan seeing how Toyota axles are 55.5” wms to wms in the front and 55” in the back wms to wms and YJ axles are about 60” wms to wms is to run offset wheels from MRW Wheel with only about 1” to 1.5” of back spacing. The only real down side to this I would guess would be the amount of stress put on the knuckle. Also I plan on running front Toyota CV driveshafts in the front and rear so the pinion and caster angles will have to be changed. Well that’s it for about now I will post some pictures when I am a little further along.

Regards Greg
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Old 10-20-2007, 06:06 PM   #8 (permalink)
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Quote:
Originally Posted by crashnzuk View Post
I thought about it briefly before I sold my sami. My conclusion was that they are too narrow and you need a pass t-case. I didn't want to get that deep into building my YJ. I know you can widen the front axles out by a few different methods, but that puts alot of stress on the kingpins having the wheels that far out. I think they'd be ok in a flatty or a narrow track CJ, but not so much in a YJ. Just my opinion.
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X2 X2 X2. Too narrow for a YJ I think. You will be going from 58.5 wms down to 55. Not much if any tougher than a cad 30/c-clip 35 anyway.
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Old 10-20-2007, 06:08 PM   #9 (permalink)
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i know its not a YJ but still an interesting project over on marlin, the willy mammoth>>> its a 48 willys with toyota axles, dual cases and a toyota diesel http://board.marlincrawler.com/index.php?topic=6472.0
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Old 10-20-2007, 06:09 PM   #10 (permalink)
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Hay there Hawks very nice build this is what I was looking for someone thinking outside the box. I have 2 questions for you one is what type of wheels did you end up running because the Toyota axle is 55.5” WMS to WMS, did you end up running a wheel with a lot of offset? And the second question is did you change the pinion and caster angle on the front axle?

My plan seeing how Toyota axles are 55.5” wms to wms in the front and 55” in the back wms to wms and YJ axles are about 60” wms to wms is to run offset wheels from MRW Wheel with only about 1” to 1.5” of back spacing. The only real down side to this I would guess would be the amount of stress put on the knuckle. Also I plan on running front Toyota CV driveshafts in the front and rear so the pinion and caster angles will have to be changed. Well that’s it for about now I will post some pictures when I am a little further along.

Regards Greg


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Old 10-20-2007, 06:15 PM   #11 (permalink)
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Look at an new V6 rear axle, width is 58.5" which is on par with an Explorer 8.8.

I'm thinking of using a Toyota gear, that way I don't have to switch axle shafts to match the Waggy D44 front.
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Old 10-20-2007, 06:37 PM   #12 (permalink)
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I have 2 questions for you one is what type of wheels did you end up running because the Toyota axle is 55.5” WMS to WMS, did you end up running a wheel with a lot of offset? And the second question is did you change the pinion and caster angle on the front axle?
The Jeepster is narrow compared to the YJ, so I have as little offset as possible to keep the wheels under the TJ flares.

I didn't change the front spring pads, but I did change the rears, only because I didn't want to use a CV shaft.

I put an Aussie in the front, and with 35's the birfs don't last long. I'll be upgrading to Longfields. The Toy axles have their benefits, but you have to upgrade them.

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Old 10-20-2007, 06:40 PM   #13 (permalink)
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I have already bought the 1983 Toyota mini truck axles that I will be using for $340.00 dollars and I knew that they were quiet a bit shorter than the YJ axles, so I talked to MRW Wheels and they do custom offset when you order wheels for no extra charge. So the plan will be to order 4 wheels with only 1”of backspacing which will give me 1” wider than a stock YJ in the front and .5” wider in the back.

Stock Toyota 8” front axle WMS to WMS = 55.5”
Stock YJ Dana 30 front axle WMS to WMS = 60.0”

Stock Toyota 8” rear axle WMS to WMS = 55.0”
Stock YJ Dana 35 rear axle WMS to WMS = 60.0” or 58.5” not sure


Stock backspacing on a YJ wheel = 3.75

A custom MRW wheel with only 1” of backspacing will gain me 2.75” per side x 2 sides= 5.5”

55.5” axle + 5.5”gain= 61.0”
55.0” axle + 5.5”gain= 60.5”
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Old 10-20-2007, 06:47 PM   #14 (permalink)
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Tacoma rear in my TJ. Its 60" wide. usig an HP44 up front.
Itll be set by this friday ( I hope )
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Old 10-20-2007, 06:51 PM   #15 (permalink)
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I am not a fortune teller but I see a 4 link in you future. LOL
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Old 10-20-2007, 10:20 PM   #16 (permalink)
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nah just needed a mount for the cupholders... whats a 4 link :P
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Old 10-22-2007, 09:18 AM   #17 (permalink)
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I have already bought the 1983 Toyota mini truck axles that I will be using for $340.00 dollars and I knew that they were quiet a bit shorter than the YJ axles, so I talked to MRW Wheels and they do custom offset when you order wheels for no extra charge. So the plan will be to order 4 wheels with only 1”of backspacing which will give me 1” wider than a stock YJ in the front and .5” wider in the back.

Stock Toyota 8” front axle WMS to WMS = 55.5”
Stock YJ Dana 30 front axle WMS to WMS = 60.0”

Stock Toyota 8” rear axle WMS to WMS = 55.0”
Stock YJ Dana 35 rear axle WMS to WMS = 60.0” or 58.5” not sure


Stock backspacing on a YJ wheel = 3.75

A custom MRW wheel with only 1” of backspacing will gain me 2.75” per side x 2 sides= 5.5”

55.5” axle + 5.5”gain= 61.0”
55.0” axle + 5.5”gain= 60.5”
Stock backspace on a YJ wheel is WAY more than 3.75". I have 4" bs wheels on my YJ and they are further out than stock.
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Old 11-07-2007, 06:36 PM   #18 (permalink)
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Sorry you are right I just measured a set of stock YJ wheels and the BS was 5.25” my bad, thanks for correcting me. Has anyone else done this swap?
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Old 11-08-2007, 05:49 AM   #19 (permalink)
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You can

You can widen the front axle to 58" using IFS hubs and spacers (very common mod). You then use an IFS rear which is wider than the solid axle rears.

You can get Toy flanges for Dana Tcases. 26 spline, dunno about 10 spline. What tcase do you plan on using? You'll want to have the shaft retubed, but the flanges/joints are very strong. I'd go all Yota on the driveshafts.

Toy front perches are ~29" center to center. YJ is 31"? I would be tempted to just use the passenger side perch, and simply relocate the driver side perch. It would move the axle 1" to the right.

I believe theres a guy on JeepsUnlimited who did a toyota axle swap.

High steer kits are readily available. The FJ80 tie rod ends are pretty beef. You might be able to have your pitman arm machined to accept them.
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Old 11-08-2007, 08:24 AM   #20 (permalink)
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Buddy of mine runs toyota diffs in his cj7 with D300 (4speed, don't remember what model) and a 360. He has never broken a rear axle shaft, but has blown up 3 gear sets. welded, front and rear, with Ofields up front. (39.5 boggers on them too)

seams to work well
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Old 11-08-2007, 03:35 PM   #21 (permalink)
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That sounds very cool do you have any pic’s? What I am really looking for is to find someone who has done this and run 1” to 2” BS wheels to see if they have had any issues with extra stress on the bearings or kingpins? I realize that I will be putting extra stress on the bearings and kingpins as well as my scrub radius will change but this Jeep for the most part will be on the trail and not a daily driver. Anyone know of any pic’s or Wright up’s?
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Old 11-11-2007, 01:34 PM   #22 (permalink)
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Here is the rear end almost done.



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Old 11-13-2007, 03:21 AM   #23 (permalink)
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I drove the jeep out of the garage this weekend. Heres a pic of a 4runner rear under a YJ with 15x10 rims i believe 3.75 BS.




Sorry that the pics are huge. I think it sits pretty descent, i think i want to get some 1.5" spacers all around though, just to give it a little more width, i dont know yet, i want to wait to wheel it first.
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Old 11-13-2007, 05:53 AM   #24 (permalink)
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Very nice build and that cage kicks ass!
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Old 11-13-2007, 08:23 AM   #25 (permalink)
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Very nice build and that cage kicks ass!
Thanks, all props go to my buddy for the cage work, i got the body and frame with the cage in it.

Ill try to get some more pics soon, my other 2 tires are being delivered tomorrow so you can get a full affect of the jeep with all toy axles and matching wheels. ill also get some good measurements on clearences on the frame.
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