Rear end Carriers
#1
Rear end Carriers
I have a stock 2.56 carrier in my 70SX and picked up a posi carrier, is there anything I need to know to change these out? is there spacers or shims I need to deal with? Should I have a shop replace this for me or is it fairly easy?
Thanks in advance
Thanks in advance
#3
Look for the 3 large numbers cast between the ribs on the end of the carrier. That ID's the specific carrier.
http://www.supercarsunlimited.com/in...id/diff_id.htm
http://www.supercarsunlimited.com/in...id/diff_id.htm
#4
Olds parts
671 3 series 28 spline axles 3.08 -3.23 and aftermarket 3.42-3.90 gears, with spacer 3.42-5.00
673 2 series 28 spline axles 2.56- 2.78 with spacer 3.08 -3.23 and all the aftermarket 3.42 3.90 gears
588 4 series 28 spline axle 3.42 -5.00 ratio
672 4 series 31 spline axle 3.42 -5.00 ratio
these number will be in the webbing check the reference picture of the webbing .
358 2 series open
156 3 series open
359 4 series open THANKS
Jim
J D
673 2 series 28 spline axles 2.56- 2.78 with spacer 3.08 -3.23 and all the aftermarket 3.42 3.90 gears
588 4 series 28 spline axle 3.42 -5.00 ratio
672 4 series 31 spline axle 3.42 -5.00 ratio
these number will be in the webbing check the reference picture of the webbing .
358 2 series open
156 3 series open
359 4 series open THANKS
Jim
J D
Last edited by monzaz; July 4th, 2011 at 09:03 PM.
#10
#16
Pontiac 12 bolt with 10 bolt cover
Brian Is correct on the 12 bolt ring gear with 7/16" left hand thread bolts. 1971-1975-6 era 28 or 31 spline (usually c-clip axles) Fullsize Pontiacs, Olds mobile and even Chevy Impalas used them.
The cover was 10 bolt scalloped on the 3 and 9 o'clock sides (kind of like the Pontiac rear cover or early 10 bolt 8.2 Olds cover) BUT LARGER over all cover ... of coarse)
I have the 153 carrier as holding the 2.73 and 3.08 ratios.
There are NO other housings this carrier will fit into... NO aftermarket gears for this rear (well that is not true ONE 3.55 set Brad at Fabcraft has a set for 450.00)
So hopefully this will give an idea of what you have or do not have. Jim
IT is a EATON unit. Clutch type.
The cover was 10 bolt scalloped on the 3 and 9 o'clock sides (kind of like the Pontiac rear cover or early 10 bolt 8.2 Olds cover) BUT LARGER over all cover ... of coarse)
I have the 153 carrier as holding the 2.73 and 3.08 ratios.
There are NO other housings this carrier will fit into... NO aftermarket gears for this rear (well that is not true ONE 3.55 set Brad at Fabcraft has a set for 450.00)
So hopefully this will give an idea of what you have or do not have. Jim
IT is a EATON unit. Clutch type.
#17
Steve
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