Rear axle tag question?

[larson]

My rear axle tag reads as follows

V125 D
3.55 10 2 2A22

I thought I had 4.10's due to my hwy cruising speeds being 65mph at 2250rpm but apparently the axle tag reads otherwise. Does that sound about right for a 3.55 geared rear end?

Also is this a d50 rear axle or the 10.25 sterling under my truck? My truck info is in my sig.
Thanks for any help guys. I'm looking into replacing all the bearings breaks and new fluid on the rear axle thats why I ask. Just want to make sure I price the right parts.

 

[79jasper]

Fairly close depending on tire size.
With 4.10 I'm at around 2500 with the zf5.

Sent from my SAMSUNG-SM-G890A using Tapatalk

 

[sjwelds]

Hmmm. 285/75 tires. 3.55 gears. 70 mph is just a whisker over 2000 on the tach. Speedometer accuracy checked by GPS and found to be PDC

 

[IDIoit]

need a pic of that females rearend.

 

[Waystro]

Being it's a 92 it's has the sterling.
dana 50 is a front axle.

 

[larson]

Hmmm. 285/75 tires. 3.55 gears. 70 mph is just a whisker over 2000 on the tach. Speedometer accuracy checked by GPS and found to be PDC

Well I'm running 235/85 16 Michelin a/t2's brand new less than 10k on them. Does that info help? I do understand a taller tire kills rpm but thats not the case for me. From the vend tag on my door jam in running factory size tires if I remember correctly.

 

[larson]

need a pic of that females rearend.

I gave up on that this last Sunday trying to give away a new fuel tank. Windows phone ****** me off. I can load a pic from my phone onto my profile to use for my SIG but I can't get it to work on a thread I post. More than likely its just another **** moment in my lifes history but I can't get it to work out for me.

 

[cpdenton]

My drw has 4.10 s.

At 70 mph, I am at 2600 in OD.

Same size tires.

Seems you might have 3.55s if you are 350 rpm less.

 

[Waystro]

@larson
http://www.oilburners.net/forums/sh...on-how-to-post-pictures-uploaded-to-the-forum

 

[larson]

My drw has 4.10 s.

At 70 mph, I am at 2600 in OD.

Same size tires.

Seems you might have 3.55s if you are 350 rpm less.

If I'm at 70mph its 2500rpm. Something doesn't seem right. 3.55 to 4.10's shouldn't be only 100rpm difference?

 

[Waystro]

The 86 I used to drive as a company truck had 3.55 gears it would hang around 2500rpms but it had a C6.

 

[LCAM-01XA]

Well I'm running 235/85 16 Michelin a/t2's brand new less than 10k on them. Does that info help? I do understand a taller tire kills rpm but thats not the case for me. From the vend tag on my door jam in running factory size tires if I remember correctly.

Same tire size, at 2100 RPMs we get 62mph (GPS-confirmed), so yes, you running 65 at 2250 sounds legit. 70 at 2500 is also about right. Our truck has the ZF junk as well.

 

[LCAM-01XA]

The 86 I used to drive as a company truck had 3.55 gears it would hang around 2500rpms but it had a C6.

2500 is right for direct-drive handshaker around 60 mph or so. The C6 was probably a bit slower in speed courtesy of the constant converter slip.

 

[larson]

Same tire size, at 2100 RPMs we get 62mph (GPS-confirmed), so yes, you running 65 at 2250 sounds legit. 70 at 2500 is also about right. Our truck has the ZF junk as well.

What's your rear axle gearing?

 

[Waystro]

Yes it was around 55-60.