axle id questions..

[88swampedmj]

hey guys i thought i had found a drivers drop 44 but when i went back to the junkyard it turned out to be something else ill try to get a pic of it but can anyone show me pics of a cj d30, chevy 10bolt, and a few others? so i can compare.. i am very confused as to what this axle is.. i left it at the yard because i thought it was a dana30 but it has manually locking hubs?? cj30?? i think i may just get leafs and cut my d30 up to accept leafs...

[88swampedmj]

 

could it be a 10 bolt?

it looked like a dana 30 but with lockout hubs...

[feerocknok]

hey guys i thought i had found a passenger drop 44 but when i went back to the junkyard it turned out to be something else ill try to get a pic of it but can anyone show me pics of a cj d30, chevy 10bolt, and a few others? so i can compare..thanks

I'm assuming it's that SAS Blazer?

All 30s look the same.

 

10 bolt (used in fronts and rears)

 

44

 

And a gasket diagram:

[88swampedmj]

the more i look at chevy axles the more it looks like the chevy 7.5 or w/e.. with 10 bolts on the cover.. which is what this axle has... can i get 5.13s with these? are they strong?

[88swampedmj]

yea but that axle was drivers drop, and had 10 bolts around the cover..

 

i accidentally said passenger drop on the first post.. but i meant drivers.. so it would fit my manche

[feerocknok]

the more i look at chevy axles the more it looks like the chevy 7.5 or w/e.. with 10 bolts on the cover.. which is what this axle has... can i get 5.13s with these? are they strong?

Here's the 7.5"

Randy's Ring & Pinion says it was used only in the rear of Blazers, Camaros, vans and some other stuff.

 

Assuming it's a 10 bolt front, they aren't real strong, but a lightweight rig should do okay. Fullsize guys aren't hot for em with 5000+ lb trucks on 35"+ tires.

 

And another Randy's quote says, "Spline Count: 1.625 / 30"

And gearing of:

2.56

3.08

3.23

3.42

3.73

4.11

4.56

4.88

5.13

5.38

5.57

 

A 44 would be a better option if you could find one.

[88swampedmj]

yea i found a 1980 wagoneer a 81 and 79 that i wanna try to get the fronts from.. which is better? i think brettm has a 80 waggy axle?

[feerocknok]

It needs to be an '80 or newer axle to be the right drop. I don't think Jeep made any changes in the axle throughout the years though.

[DirtyComanche]

It needs to be an '80 or newer axle to be the right drop. I don't think Jeep made any changes in the axle throughout the years though.

 

 

 

Well, no... That's where things get fun with the D44 fronts. Certain years (Uh, 86-89?) had a vacuum disconnect! It's similar to the D30 one, but is on the short side of the axle, and is cast INTO the gear housing. They are considered highly undesirable! I don't know if you can even convert them to being a one-peice shaft setup. Also, the increased size of the cast nodular iron centre section will cause issues if you have difficulty welding to it.

 

Parts books also show some changes to the brakes, and little things. Try to remember what year axle you have if you get one - I don't recall what mine is at all.

[carnuck]

It needs to be an '80 or newer axle to be the right drop. I don't think Jeep made any changes in the axle throughout the years though.

 

 

 

Well, no... That's where things get fun with the D44 fronts. Certain years (Uh, 86-89?) had a vacuum disconnect!

 

'82 thru early '86 with NP229 tcase and some NP228s. The NP208 and NP219 rigs were 1 piece (lockouts on NP208. NP219 was full time and hubs would destroy it if ran unlocked)

 

It's similar to the D30 one, but is on the short side of the axle, and is cast INTO the gear housing. They are considered highly undesirable! I don't know if you can even convert them to being a one-peice shaft setup. Also, the increased size of the cast nodular iron centre section will cause issues if you have difficulty welding to it.

 

A: They are strong enough to handle AMC 401s, but I slide them engaged and put the shift fork behind to keep them that way and go with manual hubs. (I had one rig with vac axle and hubs. I could lock the hubs before bad spots, then flip the dash switch to engage the axle w/o getting out again)

 

Parts books also show some changes to the brakes, and little things. Try to remember what year axle you have if you get one - I don't recall what mine is at all.

 

There is a BOM number that can be used to find out what they are from. If you found a driver's drop D30 with manual hubs and 5 on 4.5 pattern, it most likely came from a early Bronco II. I think they did 3 years of solid axle? (going from damaged memory)