i put a tack weld on one side and roll the axle back and forth taping on end with hammer.I was lucky on how straight they turned out.i would have installed the axle in truck and spun the tire taping on axle until straight but my axle coming out of the third-member has massive slop in it. [IMG][/IMG]

 

In stalled my new cv just so i can see how well it holds up.I did things different on my newest one ,I think it is stronger but we will see.By the way the old one is still in one piece[IMG][/IMG].

 

Those look nice and beefy. .120 wall is some strong stuff. have you tried doing one sleve and then 1.75 x .120 as the shaft. Ive never worked with tube in the torque handling arena. like what youve done so far. any progress on the new arms.

 

Thanks,they do look beefy from the front view of the truck. No just the 2 inch. 1.75 would be a benefit for clearance reasons. when i built my first set I did not put much effort in getting them perfectly strait.I wasn't convinced they would work. When my suspension is at full droop The two inch is almost hitting the lower a arm. do to a wobble one of the two axle would rub the lower a arm. Note that my suspension has every mod I could think of for max droop. And a am running a ball joint setup the raises the lower a arm closer to axle to give the front end more ground clearance. look at the berf side of the old axle to see rubbing marks. [IMG][/IMG]

 

As far as the arms I have some new ideas but no work to share.camping and wheeling season.

 

Amazing fab work in this thread.

Just to post some "tech" as I am researching a lightweight buggy build using Supra Diffs; front and rear.

(Edited as I gather more information)

Factory Toyota 86-95 PU CV joint axle:

Raw axle shaft length: 345MM
inboard Plunge side spline count: 24 spline
outboard droop spline: 27 spline
external axle to hub spline: 27

mark III Supra
Raw axle shaft length:?
External axle to hub count: 30 spline
inboard Plunge side spline count: 24 (And will accept a 86-95 PU Tripod)
outboard droop spline: 24; but larger diameter. Will not accept a 86-95 PU Outer)


Thanx

 

I know nothing about supra axles ,but am interested.i tried putting a 30 spline berfield through a ifs spindle after knocking out the brass bushings it almost fits.I talked to a machnest and they could mill out the spindle to fit. I just don't know about losing suspension structure for added drive line strength.Although a straight axle truck and ifs truck have identical out side diameters on the spindle.They use the same wheel bearings and bearing nuts. you can even switch bearing hubs. The thought still scares me on a street driven truck but on a light wight trailer queen buggy it could be considered.

 

You would need a bushing or bearing if you retained a locking hub, but not if you use a fixed drive flange. How would you mate the Birf outer with a stock Axle shaft? Is its inner flange the same pitch?

Just a FYI, the stock Toyota Supra axle does fit in a 86=95 IFS Tripod.

Still working on removing the outer. BTW; how do you remove the outer from the axle?

Thanx

 

Good to know. Do you know how wide the supra third is from outer edge of the tripod cups. I use a piece of tubing. slide it over the axle up against the berfield and slam it on the floor. Some times the inner clip breaks.

 

"Do you know how wide the supra third is from outer edge of the tripod cups."

10.25 inches from outside of the stub shaft to the opposite stub shaft. (CV inner tripod mounting surface)


I use a piece of tubing. slide it over the axle up against the berfield and slam it on the floor.

I tried that, tried a highlift and finally cut the outer off with a cutoff wheel. Just for grins I decided to see how much pressure it would take to cut the circlip so I put it in my press.

12 tons would not budge it.

The 1st CV I tried was a stock Toyota from a 92 4Runner, and a few well placed sledge smacks in the inner race cut the clip so I though all would be a piece of cake. nope. No idea if all mini-truck will be this easy and all Supra will be this hard. I have a very large pile to work through.


Will keep you posted; and sorry about the hijack.

 

I have separated a lot of axles from the berf both straight axle and ifs for some unknown reason some separate easy and others are extremely hard. I would like to see some pics of the supra axle components.

 

I have a business trip to make next week; and am prepping for it so it will be almost 2 weeks before I can post up anything.

The Supra plunge tripod end is exactly like the PU. The bolt holes to mount to the diff half shaft spacing is the same but the bolt holes are smaller. The inboard splines are the same so the Supra shaft will accept a PU tripod.
Now for the bad news, the outboard is larger and will not accept a PU Outer. Also; there is no way I know of to separate the internal components of the outer w\o cutting them up.

So; you have 2 options.
1. Machine the shaft to PU size
2. Send it off and have a custom outer built.

One question. What is the diameter and spline count of the stock straight axle Birfield?

 

A straight axle and ifs berfield has the same spline and dimensions where the axle meets the berf . at the hub the straight axle berf is 30 spline. Now for the bad news, the outboar larger and will not accept a PU Outer.IS IT A 30 SPLINE BERFIELD.I cant wait to see pics.Are the suppra thirds hard to come by?

 

Back for my trip.

A straight axle and ifs berfield has the same spline and dimensions where the axle meets the berf.at the hub the straight axle berf is 30 spline.

Now for the bad news, the outboar larger and will not accept a PU Outer.

IS IT A 30 SPLINE BERFIELD.I cant wait to see pics.

No; its not a mini truck Birf that we are used to. The splines that engage in the Supra hub are 30 spline, so its possible the outer end of a minitruck birf might fit properly, but I cant assume the shaft length through the hub is correct. Remember, the Supra has shallow bearings VS the deep bearings a PU has.
The factory Toyota IFS PU and Supra outer looks fairly beefy, probably a stock birf in a different package. I wont need the extra strength with what I am building; and if I shred CV's I will get RCV to rebuild my set with stronger outers a tripods.

I will have to custom machine my Supra axle shafts to accept a PU outer

Are the suppra thirds hard to come by?
Well, I saw 4 in the pick n pull last pass. I grabbed one, went back for the 2nd and one had the LSD pulled so it was useless to me; but I grabbed another so I have 2, one for both ends of the buggy. Remember; the Lexus also has a 8 inch Diff..

 

Great stuff.I am packing up to go run quack attack and dealing with a broken bead lock.But i do have some input on you build and will post as soon as we return.Have a great day.

 

Took the family on a trail ride in the cascade mountains ,Check out quack attack if ever up on hoodoo. http://

 

Holy crap that thing is sweet.

 

Just found and read this whole thread. Amazing.. Just when you think everything has been thought of and tried, along comes this.

Any ideas on what doing a centermount diff with stock arms would do as far as wheel travel?

Trying to squeak a few more inches of travel out of my 87. Don't want to go with longer arms as I am trying to keep the stock(ish) look of it. It already has a bracket lift on it (trailmaster). If anything, I would love to lower it a tad as I have no desire to run more then the current 33s on it. More of an expedition build then a hardcore crawler.

 

On all the ifs trucks that i have worked with the first thing that binds is the tripod ends.The center mount reduces the angels a lot.Not all lifts are built the same I have found.I would remove the bump stops, loosen the torsion bar all the way and start cycling the suspension while looking for the things that bind. On my set up I can cycle with the bump stops removed with no bind.Obviously you do need some sort of bump stop for wheeling. Hope that helps.By the way that would be cool and I would like to see some pic of your setup.

 

Any thing new? Pics?