Will fit with no problems. Just make sure before you install it that bushings are good and posi is in good condition.
Yes, but will qualify that. '64-69 Pontiac 8.2 10 bolt shares same "BOP" 8.2 ring & pinion & same posi's as used inb '64-67 Olds & Buick application 8.2's. The major difference between the different "Pontiac" 8.2 housings & the Buick 8.2 housings, is the lack of pinion support in the weaker housings. -Buick cast their gray iron center housings with one external rib per side. These are not that strong. Most Olds A-bodys from '64-66 also used the Buick single rib housing. I've parted several '64 & 65 442's & all had this junk single rib housing -Pontiac cast their gray iron center housings with 2 converging ribs per side... a little stronger, but still not the hot ticket considering what many today are putting in front of their r/e's. -For the '67 model, Pontiac cast their highest performance application 8.2 center housings in nodular iron. This lasted up into '71 production. The nodular 8.2 housings coupled with HD hot forged axles & 4 pinion Safe-T-Track carriers were known as Pontiac's HD Safe-T-Track rears. These were/are a lot stronger than the typical 8.2 Safe-T-Track rear, but most are restoration pieces today. -Also interesting that Pontiac engineers deemed the HD Pontiac 8.2 Safe-T-Track rears were not suitable when torque levels reached 500 ft/lb level. So for '70-72, factory 455 equipped Pontiac A-bodys received 12 bolts with HD axles & 3R u-joint flange, basically the same rear, as the '68-69 Canadian Olds & Buick 12 bolt A-body rears. Olds developed the corporate 8.5 at this time, & both Olds & Buick shared it for '71 & 72 in all their A-bodys, from 6 cyl to Stage1 & W30 applications. This housing design maximised strength in the pinion bearing area, & other than the cone type Warner-Motive posis used in '71, the 8.5's were a major improvement over all previous 8.2 rears. Skip the weak cone type Warner-Motive posi & substitute a blueprinted S spring posi or new Eaton carrier, & one has what I've been building for good part of two decades. Substitute a HD 30 spline Eaton posi carrier, 30 spline Mosers, & a lh steel cap, & one has an extremely strong steet/strip r/e. :3gears: Roger
Thanx Roger, good info. Are the Canadian Olds/Buick 12 bolts the same as a Chevelle 12 bolt, one of the 8.5" Olds 12 bolts, or something different completely? Thanx axle master.
John, The few Canadian installed 12 bolts, I've ran across, along with two '70 Framingham Skylark installed 12 bolts I've bought are c-clip "Chevy" 12 bolts, just have had different axle color ID swipe, & all had the 3R pinion yoke. Same deal with original '70-72 455 Pontiac 12 bolts I've disassembled. Currently have five '70-72 Pontiac 455HO A-body projects going with original 12 bolt r/e's. Would take some time to ck, but believe all their original 12 bolts were cast & asm @ McKinnon axle plant in Canada. All have date on the bottom lip of the housing, not in the rh webbing like the '70-72 Chevelle-Elco-Monte 12 bolts I usually run across. Not sure if McKinnon made all the Canadianinstalled 12 bolts, or not. Buffalo axle plant is mighty close, as is Warren Michigan. :3gears: Roger
Roger, This sounds like the rear end I got out of a 67 GS 4 speed, it has 4 spider gears. I believe that Ray Motyka told me that Buick used the Pontiac rear-ends in 67. I beat the living crap out of that rear end. I raced with it for about 7 years. I used nitrous and was getting 1.48 60' times, pulling the front left tire 10-12 inches off of the ground. I used the factory 3.36 gears the entire time. It does not see nitrous anymore, I've switched it over to a lighter duty application behind my 4 speed convertable. I was very impressed with the strength of this rear end.
Kelly, Holding up to 1.48 60 foot times has to be an all time record for an 8.2 Pontiac rear in an A-body :shock: How heavy was the car??? Have ran across a few racers that managed similiar 60 foot times on nodular HD Safe-T-Track 8.2 rears but they were in auto trans equipped really lightweight (3200 lbs) '67-68 Firebirds. My own experience with the nodular A-body 8.2's is they would not hold up in 3800-3900lb A-bodys behind 500-575lbs of torque. Realising how well your car was 60 footing, the '67 3.36 ratio'ed Pontiac 8.2 had to be a nodular, though all HD Safe-T-Track 8.2 rears I've ever had were 3.55's, 3.90's, or 4.33's. The 4 pinion carrier became the "good" carrier for '66, & was used in std Safe-T-Track applications as well. Every time I get a mid ratio 4 pinion unit, it does not stick around long. Have fun with your '67. :3gears: Roger
Roger, The rear end was in my 72 skylark, it weighed about 3600 lb with me in it. This was a 455 engine with a TH350. I guess I just got lucky, stumbled across the rear end. Had the cone style posi unit repaired by Ray, started racing and it never gave me any problems. Then I hear people talk about how wimpy they are. I didn't know the one I was using was any different from other 8.2 rears. Like I said I just got lucky, could have ended up with one of the wimpy ones. Thanks for the info, I don't hear much talk about the 4 spider gear deal. Seems like most people have never seen one.
