[Oldsmobile Guy]

A MINT CONDITION 1969/70 PONTIAC RAM AIR, RARE NODULAR IRON, 3.55 POSITRACTION REAR END CODE “XH” (SAFE-T-TRACK) CASTING DATE 149 (MAY, 29 1969)

Will Fit: 1967-1972
GTO, LEMANS, TEMPEST, SKYLARK, CUTLASS, 442, GS, GRAND PRIX, T-37*

*MAY OR MAY NOT NEED A U-JOINT SWAP TO MATE YOUR DRIVE SHAFT
precision 372 / neapco 3-3130 / spicer 5-3022X

SPECS / GENERAL INFO
• GM 8.2 PONTIAC 1969/70 GM A-BODY HOUSING “XH” CODE, MEDIA BLASTED, EPOXY PRIMED, PAINTED, AND DETAIL FACTORY CORRECT. WIDTH 55 1/4" FLANGE TO FLANGE (58" DRUM TO DRUM). THIS REAR IS THE VERY DESIRABLE AND RARE NODULAR IRON UNIT.
• ALL ORIGINAL GM GEARS, BACKLASH SET TO FACTORY NOMINAL 0.008 (TEXT BOOK PATTERN).
• THE BEEFY 4 PINION ORIGINAL GM OE (28 SPLINE) POSITRACTION UNIT PERFORMS FLAWLESSLY.
• NEW BEARINGS, STUDS, POLYGRAHITE MOUNTING BUSHING, SEALS WERE INSTALLED APPROXIMATELY 1,500 MILES AGO WHEN I BRIEFLY RAN A 3.90 GEAR SET. THE ORIGINAL 3.55 GEARS SET HAS BEEN REINSTALLED THIS PAST SPRING. I WILL INSTALL THE 3.90 GEAR SET IF YOU DESIRE.
• ORIGINAL GM AXLE SHAFTS WERE CHECKED FOR STRAIGHTNESS AND FOUND TO BE TRUE (5 ON 4 3/4" LUG WHEEL BOLT PATTERN).
• STOCK DRUM BACKING PLATES INCLUDED.

I’M SELLING THIS REAR END SINCE I HAVE INSTALLED THE ORIGINAL REAR END BACK INTO THE INTO MY 67 442 AND NO LONGER NEED IT. I RAN THIS REAR END UNDER MY CAR FOR APPROXIMATELY 20+ YEARS WITHOUT A SINGLE PROBLEM. IT RUNS AND PERFORMS PERFECTLY. I REBUILT THIS UNIT APPROXIMATELY 4 YEARS AGO WHEN I SWITCHED TO A 3.90 GEAR SET. THIS REAR HAS APPROXIMATELY 1,500 MILES SINCE THE REBUILD. I SWITCHED THIS REAR END BACK TO ITS ORIGINAL 3.55 GEARS THIS PAST SPRING. I CAN RETURN THE REAR TO THE 3.90 GEAR SET IF YOU DESIRE.

FEEL FREE TO ASK QUESTIONS
PAUL 248-766–1049 - Please Leave a voice message if I don't pick-up immediately... thanks!

Prefer local pick-up but will work with you if you require shipping.

Location: Milford, Michigan 48381

Price: $1200.00

[Oldsmobile Guy]

btt

[Geeto-Tiger]

PM sent.

[Oldsmobile Guy]

The price is $1,200.00 or best reasonable offer... sorry I intended to include the "OBO" in the original ad

[Oldsmobile Guy]

BTT

['ol Pinion head]

Read the Julian date as 149th day, in other words, May 29th, 1969. From the pic, can't read the assembly date on the axle tube, any idea? This housing does have external axle seals & tapered axle bearings?

[Oldsmobile Guy]

Any ideas where to find the axle assembly date code? I have not been able to find one. You're correct about the casting date for the center section. The picture of the axle tube shows the broadcast code of 'XH', a 3.55 posit traction code. The wheel bearings are of the sealed variety and the axle seals are in Board of the bearings, not external. To me, this axle assembly looks like it straddled the 1969–1970 Model Years. I hope this helps....

[comanchefirebird]

With the center casting number of 9799202 it should be for a 70 model year GTO. Based on the casting date of 149 th day, you should find a 3 digit date stamp just above or to the left of the "XH" stamped on the axle tube
Steve

['ol Pinion head]

Originally Posted by comanchefirebird

With the center casting number of 9799202 it should be for a 70 model year GTO. Based on the casting date of 149 th day, you should find a 3 digit date stamp just above or to the left of the "XH" stamped on the axle tube
Steve

Agree with Steve, the "202" casting is normally a '70-72 nodular A-body deal. With sealed axle bearings, that doesn't seem like a '70 deal from my records. My bet is this rear was a very late June-1st week of Aug 69 factory installation. Have yet yet to document a very early '70 A-body with sealed axle bearings but have documented a very late '69 Arlington plant A-body (08A) with original sealed bearing axles... have yet to run across a current year model A-body that was built so late

Would be great to know of what documented original rears are in several late June & July built Pontiac plant GTO's that have born with 3.55 STT or 3.90 or 4.33 HD STT. Can make a phone call & find out on a mid June Arlington built RAIV car, but with the logistics, would bet it is an even earlier assembled rear than this 149 cast rear.

[Oldsmobile Guy]

The axle assembly date is "G17" taken from the diff case cover. This would make the axle assembly date July 17, 1969. To me it seems like this unit straddles the 69 - 70 model years. The introduction of the 9799202 carrier looks like a late 69 model year running change. This change is always preferred in production to minimize scrap and obsolesces costs by the OE... I hope this helps!

[Oldsmobile Guy]

Btt

[Oldsmobile Guy]

A gent had me recheck the drum to drum measurement and its 60 15/16 drum to drum... sorry about that.

[Oldsmobile Guy]

PRICE REDUCED

Originally Posted by Oldsmobile Guy

A MINT CONDITION 1969/70 PONTIAC RAM AIR, RARE NODULAR IRON, 3.55 POSITRACTION REAR END CODE “XH” (SAFE-T-TRACK) CASTING DATE 149 (MAY, 29 1969)

Will Fit: 1967-1972
GTO, LEMANS, TEMPEST, SKYLARK, CUTLASS, 442, GS, GRAND PRIX, T-37*

*MAY OR MAY NOT NEED A U-JOINT SWAP TO MATE YOUR DRIVE SHAFT
precision 372 / neapco 3-3130 / spicer 5-3022X

SPECS / GENERAL INFO
• GM 8.2 PONTIAC 1969/70 GM A-BODY HOUSING “XH” CODE, MEDIA BLASTED, EPOXY PRIMED, PAINTED, AND DETAIL FACTORY CORRECT. WIDTH 60 15/16 DRUM TO DRUM. THIS REAR IS THE VERY DESIRABLE AND RARE NODULAR IRON UNIT.
• ALL ORIGINAL GM GEARS, BACKLASH SET TO FACTORY NOMINAL 0.008 (TEXT BOOK PATTERN).
• THE BEEFY 4 PINION ORIGINAL GM OE (28 SPLINE) POSITRACTION UNIT PERFORMS FLAWLESSLY.
• NEW BEARINGS, STUDS, POLYGRAHITE MOUNTING BUSHING, SEALS WERE INSTALLED APPROXIMATELY 1,500 MILES AGO WHEN I BRIEFLY RAN A 3.90 GEAR SET. THE ORIGINAL 3.55 GEARS SET HAS BEEN REINSTALLED THIS PAST SPRING. I WILL INSTALL THE 3.90 GEAR SET IF YOU DESIRE.
• ORIGINAL GM AXLE SHAFTS WERE CHECKED FOR STRAIGHTNESS AND FOUND TO BE TRUE (5 ON 4 3/4" LUG WHEEL BOLT PATTERN).
• STOCK DRUM BACKING PLATES INCLUDED.

I’M SELLING THIS REAR END SINCE I HAVE INSTALLED THE ORIGINAL REAR END BACK INTO THE INTO MY 67 442 AND NO LONGER NEED IT. I RAN THIS REAR END UNDER MY CAR FOR APPROXIMATELY 20+ YEARS WITHOUT A SINGLE PROBLEM. IT RUNS AND PERFORMS PERFECTLY. I REBUILT THIS UNIT APPROXIMATELY 4 YEARS AGO WHEN I SWITCHED TO A 3.90 GEAR SET. THIS REAR HAS APPROXIMATELY 1,500 MILES SINCE THE REBUILD. I SWITCHED THIS REAR END BACK TO ITS ORIGINAL 3.55 GEARS THIS PAST SPRING. I CAN RETURN THE REAR TO THE 3.90 GEAR SET IF YOU DESIRE.

FEEL FREE TO ASK QUESTIONS
PAUL 248-766–1049 - Please Leave a voice message if I don't pick-up immediately... thanks!

Prefer local pick-up but will work with you if you require shipping.

Location: Milford, Michigan 48381

Price: Was ($1200.00) now $1000.00 or best reasonable offer

[Oldsmobile Guy]

SOLD, THANKS FOR LOOKING...