Search found 814 matches

by monzaz
Tue Jun 28, 2016 8:32 pm
Forum: 10 Bolt Differential Questions
Topic: 1970 Skylark differential ID
Replies: 4
Views: 1285

Re: 1970 Skylark differential ID

[attachment=0]Pontiac 10 bolt 8.2 axle suffix code location. You have a 10 bolt 8.2 PONTIAC rear under your GS.... NOT Original to your 1970 Buick...WHICH might be a good thing...lol. The appeared to be grind mark is a NORMAL occurrence on rear end tubing. Chevy, Pontiac, Olds 12 or 10 bolt ...There...
by monzaz
Fri May 27, 2016 7:17 am
Forum: Rear Ends and Parts
Topic: 9.3 PONTIAC OR OLDSMOBILE THIRD MEMBER AND PARTS FOR SALE
Replies: 0
Views: 15394

9.3 PONTIAC OR OLDSMOBILE THIRD MEMBER AND PARTS FOR SALE

MONSTER GASSER 1957-1964 PONTIAC AND OLDSMOBILE 9.3 THIRD MEMBERS AND OR PARTS TO BUILD YOUR DIFFERENTIAL WE HAVE COMPLETE THIRD MEMBERS GEARS POSI UNIT SPOOL BEARING KITS USED HOUSINGS USED AXLES WE CAN CUSTOM NARROW YOUR HOUSING OR ONE OF OURS. THIS REAR IS LEGENDARY STRENGTH THE HIGHEST POWERED D...
by monzaz
Tue May 10, 2016 8:54 pm
Forum: 10 Bolt Differential Questions
Topic: Olds Axle Origin and Fit
Replies: 12
Views: 6143

Re: Olds Axle Origin and Fit

Neat... If you can get it quiet and vibration free that is key. Jim
by monzaz
Wed Apr 27, 2016 5:57 am
Forum: Custom Differential Questions
Topic: 1978 monte carlo 8.5 10 bolt
Replies: 1
Views: 8143

Re: 1978 monte carlo 8.5 10 bolt

It can not be done with us telling you how... Rear is a bad choice for trying to install into a g-body. A better choice would be the 64-66 rear it is the narrowest and there are aftermarket control arms to help you with the bolt in project. 73 -77 just does not bolt into a g-body rear. TOO HARD. ALL...
by monzaz
Mon Apr 18, 2016 2:31 pm
Forum: 10 Bolt Differential Questions
Topic: Olds Axle Origin and Fit
Replies: 12
Views: 6143

Re: Olds Axle Origin and Fit

Still worried about the lower being too wide and the shock studs are not in the correct spot nor is the spring perch in the correct spot. THAT rear is just totally the worst era to try to fit the 65-72 era... A G-body rear would be easier to install in the Early A body rear. I do see they did change...
by monzaz
Sun Apr 17, 2016 8:51 am
Forum: 10 Bolt Differential Questions
Topic: Olds Axle Origin and Fit
Replies: 12
Views: 6143

Re: Olds Axle Origin and Fit

You can use all the guts IF you find another 10 bolt 8.5 from a 1971 1972 Cutlass or Skylark. IT CAN NOT BE a rear from the 1973-1977 era. YOU need a rear from the 1965-1972 era a-body GM So GTO Lemans Tempest cutlass 442 SX supreme, Buick skylark GS or 1970-1972 Monte carlo 69-72 Grand prix Chevell...
by monzaz
Fri Apr 15, 2016 9:23 pm
Forum: 10 Bolt Differential Questions
Topic: Olds Axle Origin and Fit
Replies: 12
Views: 6143

Re: Olds Axle Origin and Fit

The rear is a 1973-1977 era a-body. NOT EVEN close to the right rear in your car. You will never get thaT THING IN CORRECTLY AND IT IS ALSO ANOTHER INCH WIDER THAT THE 68-72 REARS. AND 2" WIDER THAN THE 64-66 rears... So you will have al kinds of issues with that set-up. Sorry . Jim
by monzaz
Thu Apr 14, 2016 11:43 pm
Forum: 10 Bolt Differential Questions
Topic: Olds Axle Origin and Fit
Replies: 12
Views: 6143

Re: Olds Axle Origin and Fit

Need to see the rear end panned out mounted. That mightr be a 73-77 rear under the car which has the upper control arms in a totally different angle and the lower arms may also be an issue if they did not change them to the correct spots also. Jim J D Or get us a casting number from the center secti...
by monzaz
Mon Apr 04, 2016 6:29 am
Forum: 10 Bolt Differential Questions
Topic: 1972 Buick Skylark 8.5" 10-bolt upgrade to 30 spline w/posi
Replies: 1
Views: 1289

Re: 1972 Buick Skylark 8.5" 10-bolt upgrade to 30 spline w/posi

First off - These are NOT rare rear ends. They came under EVERY 71 72 Buickand Cutlass and even some Pontiac Lemans etc I have seen them. There were a lot of these cars built. Being a corporate 8.5 the parts are everywhere and a large selection of parts and ratios. So you are correct on your drive s...
by monzaz
Thu Mar 31, 2016 8:57 am
Forum: Race Differential Questions
Topic: 9" FORD AT THE TRACK STOCK THIRD MEMBER CASE DON'T DO IT
Replies: 0
Views: 19044

9" FORD AT THE TRACK STOCK THIRD MEMBER CASE DON'T DO IT

HERE IS A PERFECT EXAMPLE OF WHY WE DO NOT LIKE TO SEE YOU USE A STOCK 9" THIRD MEMBER CASE AT THE TRACK.

YOU TUBE VIDEO -

https://www.youtube.com/watch?v=XH_w20UYbg0
by monzaz
Wed Mar 30, 2016 12:03 am
Forum: General Differential Questions
Topic: rear end suggestions for 550-600 RWHP in a 72 cutlass
Replies: 3
Views: 9852

Re: rear end suggestions for 550-600 RWHP in a 72 cutlass

We have Power trax units but are for 30 spline axles... 30 spline axles for a 8.5 bolt in axle rear will be quite expensive at 370.00 a pair BARE. A detrouit locker will be pretty expensive again 500-600 for a unit alone. I am not really worried about HP Torque is what breaks parts... If your only i...
by monzaz
Mon Mar 28, 2016 12:36 am
Forum: General Differential Questions
Topic: rear end suggestions for 550-600 RWHP in a 72 cutlass
Replies: 3
Views: 9852

Re: rear end suggestions for 550-600 RWHP in a 72 cutlass

The Original 71 72 Skylark Cutlass rears are more that acquitted to handle that power. Recon GM posi G80 Better idea would be a good aftermarket unit (If the car is a keeper) You have overdrive so 3.73 would be a good ratio (we have good used gears if you are keeping the budget idea and since no dra...
by monzaz
Sat Mar 19, 2016 1:39 pm
Forum: Rear Ends and Parts
Topic: WTB: 64-65 GTO Rear End
Replies: 1
Views: 1802

Re: WTB: 64-65 GTO Rear End

yOU REALLY NEED TO POSI LOCATION SO PEOPLE CAN KNOW IF THEY CAN HELP IN YOUR AREA.
or finish your profile and it will have location in the side bar.
Thank you, Jim
J D Race
by monzaz
Sat Mar 19, 2016 1:06 am
Forum: 10 Bolt Differential Questions
Topic: BOP possibilities
Replies: 22
Views: 3031

Re: BOP possibilities

Can you see what I am seeing? Just trying to help everyone see the pattern how spread out it is over the whole tooth and feel the smoothness of the spin. You can see from the other pattern how hard it was hitting in just one area. NOW sometimes that can be all you can do with some gear sets that hav...
by monzaz
Fri Mar 18, 2016 9:26 am
Forum: 10 Bolt Differential Questions
Topic: BOP possibilities
Replies: 22
Views: 3031

Re: BOP possibilities

Pattern, I think you have it. How does it feel ...Close your eye and just spin it both ways... does it feel equally smooth? Looks good as a used gear can. Jim See how the pattern kind of covers the whole tooth. It is light everywhere not a super hard pattern swipe as much at the top or bottom area. ...

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