Time for tires, looking for advice.

[Stuka]

So what did you do to your front axle to build it up and did you use an aftermarket disc brake kit or piece meal from other vehicles?

Personally, I would find a set of axles from a later model (74-79) J-Truck. Then you get far stronger axles, and they already have disc brakes on them.

[Cecil14]

Didn't open knuckle come in around '72 or so? Maybe even '74? If you're going to drop that much coin on an older axle it only makes sense to jump for the newer, already set axle.


aa

[tgreese]

Yes, the last year for closed knuckle Wagoneers was 1973.

This has been discussed a lot in earlier posts, particularly on IFSJA. https://www.google.com/search?q=site%3A ... +axle+swap

[Stuka]

True, the '72 axles will bolt in to a '66, but have open knuckles up front, and single piece shafts in back. But still drum/drum. '74 will be disc in most cases, drums were optional through '75.

[tgreese]

True, the '72 axles will bolt in to a '66, but have open knuckles up front, and single piece shafts in back. But still drum/drum. '74 will be disc in most cases, drums were optional through '75.

Mmm. A '72 (or '73) is a closed knuckle Dana 30 front, with 5 lugs and 11"x2" Bendix drum brakes front and rear. First year for open knuckles (and disk brakes and 6 lugs) is 1974.

The '72 rear axle is worth having, because it's flanged (one piece, not two-piece nutted like a '66). But the only improvement in the front axle from '66 to '72 is a change from the model 27 to the model 30 carrier (pumpkin) and tubes. A '72 front (really any '73 or earlier Wagoneer front axle) is a cigar butt... good for a restoration but no other redeeming features.

[44bz]

True, the '72 axles will bolt in to a '66, but have open knuckles up front, and single piece shafts in back. But still drum/drum. '74 will be disc in most cases, drums were optional through '75.

Mmm. A '72 (or '73) is a closed knuckle Dana 30 front, with 5 lugs and 11"x2" Bendix drum brakes front and rear. First year for open knuckles (and disk brakes and 6 lugs) is 1974.

The '72 rear axle is worth having, because it's flanged (one piece, not two-piece nutted like a '66). But the only improvement in the front axle from '66 to '72 is a change from the model 27 to the model 30 carrier (pumpkin) and tubes.

Is this true for the Jtrucks also, regarding the rear axle going from two piece shafts to one piece and still 5 lug?? The main reason I didn't swap axles is that I had already bought new 5 lug wheels and an axle swap seemed pretty far outside my comfort zone at the time. But if I can get an early 70s one piece D44 with 5 lugs from a Jtruck that would be pretty sweet...

[tgreese]

True, the '72 axles will bolt in to a '66, but have open knuckles up front, and single piece shafts in back. But still drum/drum. '74 will be disc in most cases, drums were optional through '75.

Mmm. A '72 (or '73) is a closed knuckle Dana 30 front, with 5 lugs and 11"x2" Bendix drum brakes front and rear. First year for open knuckles (and disk brakes and 6 lugs) is 1974.

The '72 rear axle is worth having, because it's flanged (one piece, not two-piece nutted like a '66). But the only improvement in the front axle from '66 to '72 is a change from the model 27 to the model 30 carrier (pumpkin) and tubes.

Is this true for the Jtrucks also, regarding the rear axle going from two piece shafts to one piece and still 5 lug?? The main reason I didn't swap axles is that I had already bought new 5 lug wheels and an axle swap seemed pretty far outside my comfort zone at the time. But if I can get an early 70s one piece D44 with 5 lugs from a Jtruck that would be pretty sweet...

Yes, I believe so for the lower GVWR trucks equipped with the Dana 44 rear. Both the Powerlock differential and 2-piece axles went away in favor of the TracLock and flanged axles with a higher spline count (19? to 30 IIRC). This was 1970-ish. I don't think it was associated with an abrupt year-model change.

You could use a later open 44 front and switch to Ford 5-lug hubs, and use the pre-74 5-lug flanged rear axle - thereby keeping your wheels.

[Tad]

[quote="44bz...Is this true for the Jtrucks also...[/quote]
My experience/understanding.
Wag's:
Closed knuckle 27 from 63-72.
Closed knuckle 30 1973.
Open knuckle 44 starting in 1974.

Trucks:
Closed knuckle 44 from 63-73.
Open knuckle 44 starting in 1974.

IRRC there are some differnces in when disc's were offered.
Not very well versed on that.

[tgreese]

My experience/understanding.
Wag's:
Closed knuckle 27 from 63-72.
Closed knuckle 30 1973.
Open knuckle 44 starting in 1974.

Trucks:
Closed knuckle 44 from 63-73.
Open knuckle 44 starting in 1974.

IRRC there are some differnces in when disc's were offered.
Not very well versed on that.

Sorry to nit pick.

'72 TSM says that the '72 Wagoneer is a 30. Not sure about '71, but likely that's a 30 too, since it was a change year under AMC.

All the '72 (and by inference '73) under-6000 GVWR FSJs (not model 60 or 60-2 rears) are flanged 44 rears. Not sure how far back that extends, but IIRC it's 70-ish.

[Stuka]

here is what I have listed on the main site: http://fsjnetwork.com/drivetrain/axles/ ... tification

I do think the D30 cae in 71, not 70 like I have listed there though.

[44bz]

Yes, I believe so for the lower GVWR trucks equipped with the Dana 44 rear. Both the Powerlock differential and 2-piece axles went away in favor of the TracLock and flanged axles with a higher spline count (19? to 30 IIRC). This was 1970-ish. I don't think it was associated with an abrupt year-model change.

You could use a later open 44 front and switch to Ford 5-lug hubs, and use the pre-74 5-lug flanged rear axle - thereby keeping your wheels.

Well this is exciting news. I assumed the rear axles were two-piece until they switched to 6-lug. I've already converted my front D44 to discs so if I can find an early 70s rear D44 I should be set so far as getting away from the dang two-peice shafts!

[tgreese]

Yes, I believe so for the lower GVWR trucks equipped with the Dana 44 rear. Both the Powerlock differential and 2-piece axles went away in favor of the TracLock and flanged axles with a higher spline count (19? to 30 IIRC). This was 1970-ish. I don't think it was associated with an abrupt year-model change.

You could use a later open 44 front and switch to Ford 5-lug hubs, and use the pre-74 5-lug flanged rear axle - thereby keeping your wheels.

Well this is exciting news. I assumed the rear axles were two-piece until they switched to 6-lug. I've already converted my front D44 to discs so if I can find an early 70s rear D44 I should be set so far as getting away from the dang two-peice shafts!

Only downside is, if you have a PowerLock now, the flanged axles only came with TracLocks. Supposedly you can find 30 spline PowerLock side gears, but I don't recall what application they come from.

[Tad]

...Sorry to nit pick.

'72 TSM says that the '72 Wagoneer is a 30. Not sure about '71, but likely that's a 30 too, since it was a change year under AMC.

All the '72 (and by inference '73) under-6000 GVWR FSJs (not model 60 or 60-2 rears) are flanged 44 rears. Not sure how far back that extends, but IIRC it's 70-ish.

I don't consider it nit picking Tim, just getting info straight.
If I don't have a TSM handy I always try to preface as "my understanding or experience".

I do know the '71 wag I parted was a D27 front.
But I'm also going by the year on the registration and not the build date, I don't remember what that was.
That would be way too far back for recall in my brain.

My '72 J2000 was a flanged rear 30 spline D44 and the front was a closed knuckle 19 spline inner/10 spline outer. That I remember very well as I had a buyer for both sets of gears but only wound up sending him the rear 4.10's.
I'm not sure when the 19 spline fronts go away, I did my time with them and don't consider them even worth parting out any more.