2010 7.5 Interchangeable or not?

[PlumCrazy]

Need to swap a 97 rear 4.10 to match the D30 I'm tossing under the front.

Found a deal on a 2010 7.5 axle with 4.10 gears, but no brakes/backing plates (appeared to be disc originally) Will my 97 9" drum backing plates bolt up and are the tubes the same diameter (aka will the 2.75" bolts I bought still work)

Only visual difference are the tone rings on the axles, parking brake cable tabs, and the connector on the VSS. None are really a problem.

 

[pjtoledo]

no.
end of tube bolt flange is way larger, the tube itself is the big Explorer size.
it's also an 8.8 not a 7.5.

 

[PlumCrazy]

no.
end of tube bolt flange is way larger, the tube itself is the big Explorer size.
it's also an 8.8 not a 7.5.

The axle I'm looking at sure appears to be a 7.5

I’m going to snag it Friday. I will just have to figure out brakes and u bolts it uses the bigger the flanges/tubes I guess.

I can’t imagine they were putting 8.8s under Duratec trucks were they?

 

[lil_Blue_Ford]

I’m not sure why you wouldn’t want an 8.8” if you’re swapping axles. I put a few 7.5” rears through a workout and only had one fail before replacing, but an 8.8” is always my upgrade for the rear.

Oh, and the ABS sensor in the rear will probably not work for your speed sensor, you would have to see if you can use an older sensor since the newer trucks used a sensor in the transmission for the speed.

 

[PlumCrazy]

I’m not sure why you wouldn’t want an 8.8” if you’re swapping axles. I put a few 7.5” rears through a workout and only had one fail before replacing, but an 8.8” is always my upgrade for the rear.

Oh, and the ABS sensor in the rear will probably not work for your speed sensor, you would have to see if you can use an older sensor since the newer trucks used a sensor in the transmission for the speed.

I'm not necessarily looking specifically for a 7.5, but it was the closest and cheapest 4.10 axle I have found. Its a 2.3 truck with 300k on the odometer, so not too worried about breaking an axle. I'm pretty familiar with the strength of 7.5 vs 8.8 and I have no concerns using the 7.5 in this application. (after all...I'm putting a D30 under the front) I'll just swap the sensor from my old axle for the ABS. The speedo runs off the transmission, so if I cant make the rear VSS work I also don't really care.

 

[PlumCrazy]

I just noticed looking at the picture that the brake backing plate flanges are rotated 90* from my drum brake axle.....poop.

 

[pjtoledo]

I’m not sure why you wouldn’t want an 8.8” if you’re swapping axles. I put a few 7.5” rears through a workout and only had one fail before replacing, but an 8.8” is always my upgrade for the rear.

Oh, and the ABS sensor in the rear will probably not work for your speed sensor, you would have to see if you can use an older sensor since the newer trucks used a sensor in the transmission for the speed.

that center section does not have a speed sensor. there will be one on each of the brake plates.
the boss on the center section is for the pivot arm found on Crown Vics.

nothing wrong with rear disk brakes, get a master cylinder for the same year.
that axle had separate lines for each side, some plumbing needed.

axle shafts are unique, big bearings and 28 splines in the diff.

 

[PlumCrazy]

that center section does not have a speed sensor. there will be one on each of the brake plates.
the boss on the center section is for the pivot arm found on Crown Vics.

nothing wrong with rear disk brakes, get a master cylinder for the same year.
that axle had separate lines for each side, some plumbing needed.

axle shafts are unique, big bearings and 28 splines in the diff.

If the axle came with the brake brackets I would go for it, but its starting to look like its not going to be cheap enough to justify all the extra messing around now. Unfortunately I don't have any pics showing the top of the housing, so the VSS connector difference was a guess. I didn't think about it only using individual WSS

 

[sgtsandman]

If the axle came with the brake brackets I would go for it, but its starting to look like its not going to be cheap enough to justify all the extra messing around now. Unfortunately I don't have any pics showing the top of the housing, so the VSS connector difference was a guess. I didn't think about it only using individual WSS

It also looks like the differential was opened up since there appears to be missing bolts. Fo what you are looking to do, I don't think this is the axle for you. It looks to have had it's bones picked pretty clean.

 

[PlumCrazy]

It also looks like the differential was opened up since there appears to be missing bolts. For what you are looking to do, I don't think this is the axle for you. It looks to have had it's bones picked pretty clean.

I figured it was opened up to pull the shafts to get the backing plates off.