Search found 845 matches

by monzaz
Wed Jan 02, 2019 8:12 am
Forum: General Discussion
Topic: New to site
Replies: 1
Views: 93

Re: New to site

I am sure we can help... Just need some pictures to ID the rear. - Rear cover, Yoke and back side of backing plate... IF that does not do it totally will ask for some different spots... that usually does it though. :) Jim
by monzaz
Fri Dec 14, 2018 11:16 pm
Forum: 12 Bolt Differential Questions
Topic: Olds Type 'O' casting date
Replies: 1
Views: 132

Re: Olds Type 'O' casting date

From what we know there is not year on this casting 1970 was one year casting so really no need for one the 344 is the Julian date so it stands for the 344th day of that 1970 year. Pretty sure it was December 10th of 1970. 1970 will have a OILED axle bearing system and was the only year for this in ...
by monzaz
Sun Dec 02, 2018 4:23 pm
Forum: Rear Ends and Parts
Topic: 10 bolt 8.5 custom NARROW S-10 2wd HD rear posi 3.73
Replies: 0
Views: 143

10 bolt 8.5 custom NARROW S-10 2wd HD rear posi 3.73

10 BOLT 8.5 1/2 TON TRUCK CENTER NARROWED TO 46" FLANGE TO FLANGE OVER ALL WIDTH IS 51.75 DRUM TO DRUM NEW 4.10 GEARS NEW AUBURN PRO POSI NEW BEARINGS AND SEALS NEW MOSER ALLOY 1541H AXLES 2.5 " ARP WHEEL STUDS (12MM) MECHANICS 3 R YOKE (SAME AS STOCK S10 YOKE) 9.5 X 2 STOCK S-10 BACKING PLATES INCL...
by monzaz
Sun Dec 02, 2018 4:17 pm
Forum: Rear Ends and Parts
Topic: SUPER IMPALA REAR END 12 BOLT 9.5 POSI 33 SPLINE RACE AXLES
Replies: 0
Views: 107

SUPER IMPALA REAR END 12 BOLT 9.5 POSI 33 SPLINE RACE AXLES

IMPALA 1965 - 1970 SUPER CUSTOM 9.5 12 BOLT GM REAR BASE HOUSING IS 14 BOLT 3/4 TON TRUCK CENTER 9.5 RING DIAMETER MASSIVE POSI YUKON 33 SPLINE EATON PERFORMANCE CLUTCH POSI MONSTER MOSER ENGINEERING 33 SPLINE RACE BOLT IN AXLES 1/2" X 20 X 2" LONG SCREW IN PERFORMANCE STUDS WHEEL BOLT PATTERN IS 5 ...
by monzaz
Tue Nov 20, 2018 11:45 am
Forum: Rear Ends and Parts
Topic: 10 bolt 8.5 and 8.625 posi unit gears and rebuild kits LIMITED TIME!!!
Replies: 0
Views: 170

10 bolt 8.5 and 8.625 posi unit gears and rebuild kits LIMITED TIME!!!

ALL PARTS ARE NEW IN BOXES 10 bolt 8.5 and 8.6 LSD POSI UNITS EATON YUKON 28 OR 30 SPLINE 400# PRELOAD SPRING PERFORMANCE CLUTCHES STRONG AND QUIET OPERATION ALLOY HARDENED SPIDER GEARS STRENGTH TO HANDLE THE TORQUE NEW IN THE BOX - 359.00 GEARS- YUKON PREMIUM RING AND PINION SETS 3.23 3.42 3.73 3....
by monzaz
Sat Nov 17, 2018 4:19 pm
Forum: Rear Ends and Parts
Topic: 12 bolt chevy rear end parts 10 chevy also HOLIDAY SPECIALS!!!
Replies: 0
Views: 138

12 bolt chevy rear end parts 10 chevy also HOLIDAY SPECIALS!!!

12 BOLT CHEVY YUKON DURA GRIP POSI 359.00 NEW IN THE BOX 10 BOLT CHEVY YUKON DURA GRIP POSI 359.00 NEW IN THE BOX 12 BOLT CHEVY GEARS YUKON PREMIUM 3.42 3.73 175.00 10 BOLT CHEVY GEARS YUKON PREMIUM 3.55 3.73 175.00 12 BOLT 3.31 3.55 RATIOS YUKON PREMIUM GEARS 195.00 REBUILD KITS 12 BOLT OR 10 BOLT ...
by monzaz
Thu Nov 15, 2018 11:34 pm
Forum: Rear Ends and Parts
Topic: dana 60 complete B-Body rear 68 69 mopar hemi
Replies: 0
Views: 125

dana 60 complete B-Body rear 68 69 mopar hemi

Here is a CUSTOM BUILT DANA 60 rear end built with 3.54 gears, traction Lock posi, All new bearing and seals, Moser race axles 35 spline 11" performance drum brakes all new parts Lines and brake hose also included. 500.00 in MOPAR MADDNESS 11" HEMI drum brake parts Spring perch center line 44" over ...
by monzaz
Sun Oct 21, 2018 12:21 pm
Forum: 10 Bolt Differential Questions
Topic: Forged vs. Cast Axle Identification (BOP 8.2)
Replies: 4
Views: 548

Re: Forged vs. Cast Axle Identification (BOP 8.2)

ID ind forged and or cast axles. Will have to do more home work on that... by the time we get most rears for reconditioning they NEED axles and rarely get reused again. :( 45 + years of punishment just is not good, and also the car sitting on the axles in back yards and wrecking yards tossing cars a...
by monzaz
Sun Oct 21, 2018 12:19 pm
Forum: 10 Bolt Differential Questions
Topic: Forged vs. Cast Axle Identification (BOP 8.2)
Replies: 4
Views: 548

Cone LSD units

We can re-machine cone limited slip differentials ONCE... after once there is just not a sufficient enough metal left to make it reliable anymore. normally it i s in the 150.00 dollar range. We many of these for guys that want ORIGINAL show parts car restorations... We have done many for guys drag r...
by monzaz
Sun Oct 21, 2018 12:10 pm
Forum: 10 Bolt Differential Questions
Topic: Forged vs. Cast Axle Identification (BOP 8.2)
Replies: 4
Views: 548

Re: Forged vs. Cast Axle Identification (BOP 8.2)

Sorry been racing at the last Big Sportsman race here in Northern Ohio... Will try to get some answers. All the Hardened axles we have pulled have the single retaining plate whole no multiply hole flange. they are in the Nodular housings and had very heavy tapered spline ends... Castings were also r...
by monzaz
Sat Sep 01, 2018 8:58 am
Forum: 12 Bolt Differential Questions
Topic: 68 and up a body Chevy 12 width verses 65 Catalina width.
Replies: 1
Views: 659

Re: 68 and up a body Chevy 12 width verses 65 Catalina width.

Lowers are too wide on your Pontiac...Much wider car than a a-body Chevelle and the upper are the biggest problem with them being too wide and totally different angles. Until you have them in front of you you just see upper bushing and think oh they looks close...lol. THEY are NOT. NOW anything can ...
by monzaz
Tue Aug 28, 2018 12:47 am
Forum: 12 Bolt Differential Questions
Topic: 12 bolt ring gear 10 bolt cover/ 12 bolt chevy
Replies: 1
Views: 371

Re: 12 bolt ring gear 10 bolt cover/ 12 bolt chevy

1965-1970 Pontiac (FULL SIZE CAR REAR) That is your main difference. The rings are the same 8.875 diameter But that is where the similarities STOP. Ring gear bolts Pontiac are 7/16" x20 (Right and left hand thread early or late) Ring gear bolt s Chevy are 3/8 x 24 (right hand thread only) Pinion sha...
by monzaz
Wed Aug 08, 2018 8:49 pm
Forum: 10 Bolt Differential Questions
Topic: 1965 Pontiac 2+2 rear end gears
Replies: 1
Views: 666

Re: 1965 Pontiac 2+2 rear end gears

Hi Welcome to the site... Unfortunately we have bad news. No Aftermarket gears any steeper than 3.55 for the Pontiac 8.875 FULL SIZE car rear with bolt in 31 spline axles. 10 bolt cover 12 bolt ring gear. NOW hope is still there. If you can find a original GM set of 3.73, 3.90, 4.10, 4.33, 4.56, 4.8...
by monzaz
Mon May 28, 2018 5:39 pm
Forum: 12 Bolt Differential Questions
Topic: 1970 12 Bolt "O" Detroit Truetrac
Replies: 3
Views: 897

Re: 1970 12 Bolt "O" Detroit Truetrac

I am sure you could... But the support of the flange is critical to defection under loads of the pinion trying to drive the carrier round and round. and the ring gear can only have so much removed also as you have to get the bolts into the ring deep enough for good retention also. Jim Then the cost ...
by monzaz
Fri May 25, 2018 8:43 am
Forum: 12 Bolt Differential Questions
Topic: 1970 12 Bolt "O" Detroit Truetrac
Replies: 3
Views: 897

Re: 1970 12 Bolt "O" Detroit Truetrac

No , you can not do any aftermarket unit for a 2.56 or a 2.78 gear in a 12 bolt olds. NO one makes the correct offset. 8.5 offset is for the 3.08 3.23 gear set in the 12 bolt olds conversion. :( Sorry.
J D Race
Jim Mitschke