Thanks Mike.
Found out the pair of GM NOS side yoke axles are 1.5" OD at the area of the shaft where the side bearings are installed.
Most other side yoke axles have an OD of 1.4".
Found that the installed side bearings in the rebuilt Dana 44 ICA have 1.4" ID so the GM NOS axles won't fully insert as the bearing flange on the shaft hits the front of the side yoke bearings.
Will need to return these for a refund or have them machined down to 1.4 OD.
The carrier case side bearing bore is 2.25".
The Dana Catalog shows Spicer bearing #566002 and the Yukon Gear & Axle catalog shows bearing # YB-AX005. Both bearings have and ID of 1.5" and it does slip-fit over the loose axle shaft okay. The problem is that both bearings OD is 1 7/8" and is too small for the carrier case side bearing bore.
Quite a confusing situation.
Think all rebuilt axles are 1.4" OD so this GM NOS axle needs machining or a return for a refund.

Anyone try pulling out the side yoke bearing from the outside ?

Thanks for the help.
Ken

 

Ken, found your problem.
Your NOS axles are for 1985-1996. Same with your new bearings.
Mike

 

Thanks Mike....would you know the bolt size of the yoke end for the yoke strap, U-joint OD of the yoke end and spline count on the 85-96 Corvette axles ?...Just want to be sure everything matches the 85-96.

These GM NOS aixles have the 5/16" bolt holes for the yoke strap, the yoke where the U-joint goes has an OD of 1 3/16" & 30 splines on the axle.

I measured the yoke from the yoke end to the tip of the spline end with a mm tape ruler and straight-edge (not very accurate but a rough measurement):
LH short yoke- 170 mm,,,longer than Steve @Duntov Motors
RH long yoke- 189 mm....shorther than Steve @Duntov Motors

Steve at Duntov Motors 82 Corvette yoke measurements are very accurate:
LH short yoke- 167.4622 mm
RH long yoke- 192.8114 mm

The INA bearing #F66263 installed in the rebuilt Dana 44 ICA 3:54 has an ID of 1.397638" which if installing a bonafide 82 side yoke axle will be awfully tight and more of a press fit.
Plan on removing both INA bearings with Koyo #DB 67309 with and ID of 1.4018".

If for sure these NOS axles are 85-96, I'll ask the seller for a refund as I don't have a C4 Corvette.

If it's "iffy" that these "might" be for the 82 & "might" fit, will take the chance & have the machine shop reduce the axle OD to slip fit the Koyo bearing @ 1.4018". Cost of the machining @$150. Seller PayPal'd me $75 to cover half the machining cost.

This might be a situation where the original GM axles were 1.5OD and Spicer #566002 had an ID of 1.5" and OD of 2.2519". Now Spicer #566002 has an OD of 1 7/8".
Yukon Gear & Axle shows their 82 Corvette bearing is YB-AX005 and they use Timken B-2412 or Spicer #566002 according to their Sales Dept. These bearings have an ID 1.5" / OD 1 7/8"
I've e-mailed Yukon Gear & Axle as to how their 82 Corvette bearing will fit in the 82 Corvette with its 2.25" carrier case side bearing bore....to date- no reply.
I suspect bearing companies re-tooled their bearings and changed the Spicer #566002 to market demand and 82 Corvette owners found only bearings available with OD 2.25" are the ones with ID 1.4".
I've checked Torrington, Spicer, Koyo, Timken bearing catalogs and all their bearings with 2.25" OD have the smallest ID of 1 7/8".
Think rebuilders of rebuilt side yoke axles probably machined down the original axles to 1.4" to match the current supply of axle bearings.
This is only a "theory"....no facts to back it up.

Haven't found anyone selling the 85-96 side yoke axles, side yoke bearings, side yoke U-joint straps/bolts for some reason so cannot cross-check this NOS axle.

Anyway, let me know if conclusive these NOS axles are 85-96 and won't machine the axles and will ask for refund which is probably unlikely.

Ken

 

First, deal with people that actually know the difference between a C3 D44 and a C4 D44.
There is nothing iffy, this is what I work on everyday.
Bolts and strap are the same on all 1350 series Dana's. The correct u-joint for the C4 D44 is the Spicer 5-800X which is no longer available. The replacement joint was the 5-799X which is now5-1350X which is correct for your 82.
Koyo bearings are junk, run the INA or the torringtons.
To save a future headache, does your rebuilt diff have a C3 carrier or a C4 carrier?
Mike

 

Thanks Mike.
My 82 Corvette still has the original factory 2:87 Dana 44 ICA.
I was going to rebuild it to a 3:54 and this rebuilt unit came up for $600 without the side yokes.
The rebuilt uinit has the C3 carrier with the INA #F66273. ID is 1.397638:
Steve at Duntov Motors said his 82 Corvette side yokes are 1.398" OD on the axle where the side bearing rides on.

I found a retailer selling the Dana44HD side yoke axle at:http://www.justdifferentials.com/YOK...okd44hd-lh.htm
I've asked them for the OD on the axle where the bearing rides on and the length of the axle from the yoke end to the end of the spline shaft.

Think the Dana44HD spicer gear accepts the 30 spline side yoke axle so what you've said about the 82 using the same U-joint for the half shaft as the 85-96 the difference must be the OD on the axle where the bearing rides on and the axle length.

Think you're right that this GM NOS axle is the C4 Dana 44HD.

What manufacturer/bearing # do you use for the Dana44 HD ICA/216 as this will indicate the OD of the side yoke axle where the bearing rides on.

Not planning to machine these axles as might be returning them.

Thanks for the help.
Ken

 

Thanks Mike for all the help.

Justdifferentials.com, Jeremy, advised me today the 82 Corvette yoke OD is 1.398" and 84-96 Corvette Dana 44HD OD is 1.498". He said the set I have is for the 84-96 Corvettes.

Seller of these GM NOS axles didn't want a return since I purchased these Jan 2017,

If you know anyone interested, I'll be selling these GM NOS axles for $250 including 2 new Dana Spicer #566002 side yoke bearings. Dana Spicer uses Torrington #B-2412 bearings. Shipping via USPS Medium Flat Rate Box for additional $13.60. I ordered an additional set of Torrington B-2412 for my original 82 Corvette differential which now found out does not fit, so I'll throw this pair in the shipping box as I cannot use these.

Will order new pair of 82 side axles from Zip Corvette.

Ken

 

You should call Ken at Lonestar caliper in Canton Texas. He may be interested in them since they are oem. He may make you a deal since he is the company that makes the new stub axles for all the vendors, including all the ones you've mentioned.
Mike

 

Thanks Mike.
I've just sent Ken an e-mail.
I'll let you know what happens.

 

Hi Mike,

Just found this useful info in helping to decipher the differences of the Dana 44 ICA vs the Dana 44HD ICA side yoke axles:
https://www.corvetteforum.com/forums...d-to-know.html
The C4 uses the metric bolt for the side yoke axle U-joint straps- M8 / 1.0 pitch.
The 80-81 4-spd/82 Automatic C3 uses the Amercian Standard 5/16"/ 24 threads.

As you mentiioned, the 82 C3 and C4 85-96 uses the same 1350 U-joint with the 1 3/16" cap and both axles have 30 splines.
OD of the bearing surface of the C3 axle @1.398" / C4 OD @ 1.498"

The key on this GM NOS is the bolt/thread size of the axle yoke.
https://www.corvetteforum.com/forums...d-to-know.html
http://www.dennysdriveshaft.com/p495...2_to_2002.html
http://www.zip-corvette.com/68-82-c3...trap-bolt.html

I'll bring one axle to the hardware store and test both types of bolts on the axle.
When I received the axles, I test fit the yoke with the 5/16 x 24 to check if it was a 1/4" or 5/16" and the 5/16" fit.
This time, I'll thread the SAE / Metric bolts in deeper into the yoke to see which goes in without thread interference.
Update: These GM axles have the M8 / 1.0 Threads so they are definitely the 85-96 Corvette Dana 44HD axles.

 

Hi Mike,

Dana Spicer #566121 for the 82 Corvette is a Koyo # DB67309.
Spicer also uses Torrington brand bearings in their other bearings.

Ken