CK5
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D70 BOM numbers....whats your best guess on these stamped numbers.
- Thread starter 76zimmer
- Start date
You should take something like a piece of charcoal briquette and rub it into the digits. Then get a piece of sandpaper and rub the tubing until its shiny. Then you'll be able to decipher the digits a little better.
Or a flapper disc but not too much.
x2 on light sand or sander flappy disk to just skim the rust off . just kiss them with the disk .
Soapstone rubbed over the stamping would probably work good too.
Charcoal rub. Peice of paper and some charcoal. After scrubbing with a red scotchbrite lubed with wd40
should have mentioned...the 76 housing I hit with a wire brush, then some brake cleaner with the wire brush, then some lumber crayon, wiped off the excess hoping it would stay in the numbers but it wasn't any clearer, tried some soapstone, rubbed it inot the numbers real good then gently wiped away the high points, still hard to read...the best result I had was with it completely clean and shining a flashlight at different angles.
so my reasoning behind this is to see if the Dodge D70U diff would plug into the D70HD housing.
after looking up the numbers I thought it to be (OK I do have an advantage of blowing the pics up more on my computer than these posted pics will allow) the Ring and Pinion kit have different part #'s from the Dana BOM listing...
the D70U from the Dodge....
CHRY Model 70/267 REAR 1998 - D2500 W/ABS
Bill of Material 606094-1
Diff. Type Ratio STD 3.54
Ring and Pinion Kit 708015-1
Differential Assy Kit 708016
Differential Case Kit 708017
Diff Inner Parts Kit 707252X
Right Hand Shaft Assembly 43811-12
Left Hand Shaft Assembly 43811-12
OverHaul Kit
Bearing Installation Kit
The D70HD from the 76 CC (only goes back to a 79 model year, but I'm assuming they are the same)
GM Model 70/267 REAR 1979 - C-30 DUAL WHEEL - 70HD
Bill of Material 603704-1
Diff. Type Ratio STD 4.10
Ring and Pinion Kit 706999-4X
Differential Assy Kit 706064X
Differential Case Kit 706068X
Diff Inner Parts Kit 706058X
Right Hand Shaft Assembly 41100-1
Left Hand Shaft Assembly 41100-1
OverHaul Kit
Bearing Installation Kit
I will give Randy's a call soon to see what the compatibility is.
so my reasoning behind this is to see if the Dodge D70U diff would plug into the D70HD housing.
after looking up the numbers I thought it to be (OK I do have an advantage of blowing the pics up more on my computer than these posted pics will allow) the Ring and Pinion kit have different part #'s from the Dana BOM listing...
the D70U from the Dodge....
CHRY Model 70/267 REAR 1998 - D2500 W/ABS
Bill of Material 606094-1
Diff. Type Ratio STD 3.54
Ring and Pinion Kit 708015-1
Differential Assy Kit 708016
Differential Case Kit 708017
Diff Inner Parts Kit 707252X
Right Hand Shaft Assembly 43811-12
Left Hand Shaft Assembly 43811-12
OverHaul Kit
Bearing Installation Kit
The D70HD from the 76 CC (only goes back to a 79 model year, but I'm assuming they are the same)
GM Model 70/267 REAR 1979 - C-30 DUAL WHEEL - 70HD
Bill of Material 603704-1
Diff. Type Ratio STD 4.10
Ring and Pinion Kit 706999-4X
Differential Assy Kit 706064X
Differential Case Kit 706068X
Diff Inner Parts Kit 706058X
Right Hand Shaft Assembly 41100-1
Left Hand Shaft Assembly 41100-1
OverHaul Kit
Bearing Installation Kit
I will give Randy's a call soon to see what the compatibility is.
I don't think there's anything compatible nor will interchange between the two. Both have different pinion offsets along with the different part numbers as you posted.
grab some 
and a 
and start reading this little thread . http://www.pirate4x4.com/forum/chevy/522333-dana-70-thread.html
and a and start reading this little thread . http://www.pirate4x4.com/forum/chevy/522333-dana-70-thread.html
