Need taller gears for my 62 Posi

[RustyCrank]

I have an original 3.90 Posi in my 62 and need to know if the lower ring and pinion gears will work with my posi unit. There were 2 different ratios offered in that year and it looks like non posi came in either 3.30(?) or 3.90 and cant imagine the carriers being too different as they both fit the same housing. I know the old Ford 9" route is an option, but just spent a pile of dough on the wife's 56 Nomad makeover and need to keep this as econo as possible....

Anyone done this swap?

Attached is a pic of the housing

[Captainfab]

What you have there is a 12 bolt truck rear differential. That should not be original to a '62 truck. If the backing plates are pressed on, then it is possible that your truck is a late production '62. The '63 12 bolts had the pressed on backing plates. On the 12 bolts the 4 series carrier works with 3.73 and lower gears (higher numerically) and the 3 series carrier works with 3.42 gears and higher gears (lower numerically).

[raycow]

I agree with the Captain. A stock 62 rear would have a round cover plate and a drop-out center section.

You are fortunate that a PO did the 12 bolt swap, because the gear selection is better and it is much easier to find a posi for it. I don't think anyone is making new posi units for the 62-earlier rear, and original ones are extremely scarce.

Ray

[1Bad62Pro/Street]

As far as a Ford 9 inch swap. I have done this swap.
I have the original 3.70 gear ratio. Good road gear.
Been wanting a 4.10 or 4.11 to give her a little more umph.
I believe CaptainFab is correct on the posi rear end.
Anyhoot... If you wanna do the 9 inch swap just hollar at me.
I'll tell you what you need to do. Check out my build thread as well.
I am very partial to 9 inch hineys. We have a stash of the kinda rare more sought
after ones.
Posted via Mobile Device
Posted via Mobile Device

[RustyCrank]

Thanks guys for the replies and I should have attached the other view which shows this is a 10 bolt rear, and pretty sure it's the original for '62 - at least the two I have. All the mounts and panhard brakets are stone stock original too. Having said that, I'm finding that I apparently have a couple rare rear ends but both were from different trucks from different sellers here in the NW. Let me know if this helps?

[GMR-PERFORMANCE]

Not the best pic but you can see that what you have is not what is stock. I know that many have said the stock unit is not very strong. Myself would disagree with that. I have made too many 1/4 pass's to count with the stock set up with ET'S in the mid 11 second range best to date is a 11.10 pass. I run the snot out of that truck and that rear end has taken everything I can throw at it. I run a 27 inch tall slick that is 11 inches wide with a 5500 RPM launch.. Those tires hook like a monster. If I break it a 9 inch with 35 splines will go in it. But until then the stocker stays where it is at.

[raycow]

Originally Posted by RustyCrank

Thanks guys for the replies and I should have attached the other view which shows this is a 10 bolt rear, and pretty sure it's the original for '62 - at least the two I have. All the mounts and panhard brakets are stone stock original too.

Aha! That view makes all the difference. What you have there is a Dana 44 and it is likely out of a 60-62 GMC 1/2 ton. It is the only other rear that will bolt up to your trailing arms without having to move the perches. When you can find one of those it is a very good way to get better gearing and posi in a 60-62 Chevy. Gear and other parts availabilty is good. I looked for one of those for my 60 but finally gave up because they are so scarce.


Ray

[GMR-PERFORMANCE]

Here is a link to some info that has parts that you are looking for. I did one of these for a buddys truck .



Having problems with Dana 44 rear end? We offer a complete line of ring and pinion gears plus rear end parts for the DANA 44 differentials. You can purchase high quality ring and pinion sets in various ratios, high quality rear end bearing overhaul kits including pinion bearings, pinion seal, crush sleeve, pinion nut, shims, ring gear bolts, marking compound and gasket. This differential was utilized by Chrysler in their pickup line starting in 1969 and Jeep line starting in 1967 including the J10, Wagoneer, CJ5 and Cherokee. International used in the pickup line and Scout from 1966 to 1980, it is also found in some Ford applications Bronco, F-100, F150, early Thunderbirds 1955 to 1956 and the Corba 1963-1967. GM used this very popular differential in their K10 and K30 pickups from 1960 to 1990 and it was even used in their Corvette line between 1980 and 1982. Our inventory includes ring gear and pinion sets, including aftermarket and OE gear sets. We are also able to supply axles, carriers, cases, spider and side gears. Positraction units we offer include Lockrights by Powertrax, Auburn, Detroit Lockers, Trac Loc and ARB air lockers. We are a Dana Spice volume distributor and offer a complete line or ring gear and pinions up to and including the large Dana 80 differential. Specifications are provided below to assist you in the identification and setup as well as torque spec.’s required for rebuilding your Dana 44 differential.

We can provide ring gear and pinion kits, for replacing current ratios or changing differential ratio for optimizing your performance, in addition to ring and pinion gear sets we offer differential bearing kit, carrier or case replacements including spider and side gear (internal kits). Positraction units and axles are also available to upgrade your existing differential assembly.

Along with our quality parts you have access to applications information for available ring and pinion ratios, information to assist you in identification of the differential that you have. Free information for ring and pinion installation is provided alone with specification and carrier/case breaks when you are considering gear ratio changes. You can review applications available to assist you with selection of the specific positraction unit that you may need to improve your performance.

Ring and Pinions Sets

Cases, Bearing Kit and Misc Parts

Positraction Units Purchase the parts at drivetrain.com and receive free installation technical support by telephone!

Yes real technicians with many years experience, not just a salesperson. Other Dana Differential Information

Dana 30 Information and parts.
Dana 35 Information and parts.
Dana 60 Information and parts.
Dana 70 Information and parts.
Dana 80 Information and parts .


Applications Model Year
Model Year

Chevrolet K10, 25 F 60-90
IHC Scout Front 72-80

Chevrolet K30, 35 F 67-76
IHC Scout Rear 68-80

Corvette 80-82
IHC 100 150 200 1100 1110 1200 1210 F&R 66-75

Chrysler W100, 150, 200, 300 & 350 F 69-96
Jeep C101 R 67-72

Ford Bronco F 71-96
Jeep Wagoneer F 74-83

U-100 Front 71-78
Jeep J10 20 Front 74-86

Ford F100 F150 4X4 R 67-78
Jeep CJ7 F&R 67-75

Ford F150 Front 75-78
Jeep Comanche R 76-92

Ford F250 Front 77-90
Jeep Grand Wagoneer Front 84-92

Ford F100 F150F 78-90
Jeep Scrambler R 72-75

Cobra 63-67
Jeep Wagoneer 72-79

Thunderbird 55-56


9-3/8"
10 HOLES
OVAL Gasket Pattern

SPECIFICATIONS
Ring Gear Diameter 8.5"
10 3/8" X 24 RH Threaded Bolts
PINION Diameter 1.376", 26 Spline
CASE: 3.73 & Down, 3.92 Numerically Higher

8620 Material Heat-Treated

19 Spline Rear Axles on Jeep to 1970

30 Spline Front & Rear Axles

Assembly Specifications:

Cover Bolt Ft. Lbs. 30-40
Pinion Nut Ft. Lbs. 200-220
Ring Gear Backlash .005-.008
Ring Gear Bolt to case Ft. Lbs. 45-60
Side Brg. Caps Ft. Lbs. 70-90
Instructions for setting up ring and pinion backlash



DANA 44 Ring Pinions
Part Number Ratio Teeth Price

706017-1X Rear 3.07 43-14 $255.68



Your gears run cooler and last longer!




Order above high performance synthetic oil and friction additive combo kit at time of order for ring and pinion or bearing overhaul kit and pay only $36.76.

706017-2X Front or Rear 3.31 43-13 $276.26

707240-5X Front Rev 3.50 42-12 $233.11

707240-6X Rev 3.54 $315.16

706017-3X Front 3.54 46-13 $241.58

707020-3X Front * 3.54 46-13 $240.82

706017-3X Rear 3.54 46-13 $241.58

707240-6X Rev Ring & Pinion 3.54 46-13 $266.81

707381-3X Large Pinion 3.55 $383.46

MW D44-373F Front Rev 3.73 $170.70

76542-5X Large Pinion 3.73 $237.87

707381-4X Large Pinion 3.73 $268.89

706017-4X Front or Rear 3.73 41-11 $264.54

80186-5 ThickLarge Pinion 3.91 $202.64

707338-2X Crush Sleeve Style 3.92 $248.66

706017-11X Front 3.92 47-12 $276.68

707020-5X Front * 3.92 47-12 $233.38

707338-3X Crush Sleeve Style 4.09 $246.48

706017-5X 4.09 $234.46

706017-5X Front 4.09 45-11 $234.46

707020-4X Front * 4.09 45-11 $228.54

707240-9X Front Rev. 4.09 45-11 $247.58

24649-5X Ring & Pinion Only 4.09 45-11 $200.24

74720-5X Thick 4.10 $237.38

707309-1X Thick 4.10 $269.96

706017-10X Front or Rear 4.27 47-11 $246.62

706017-21X Front or Rear 4.55 50-11 $236.84

MW D44-456R Front Rev 4.56 $170.69

75723-5X Thick 4.56 $237.24

707309-5X Thick 4.56 $272.18

706017-22X Front or Rear 4.89 44-9 $226.95

706017-8X 5.38 $236.44

706017-8X Front or Rear 5.38 43-8 $236.44

706017-9X 5.89 $268.89

706017-9X Front or Rear 5.89 53-9 $268.94

WCDD44TR 4.11. 4/56. 4/88 or 5.13 $208.00
New Thick Gear Ring and Pinion kits for for your New Jeep Liberty, use your existing case.
The Dana Ring and pinion kits inclued high qualitypinion bearings, pinion bearing seal, gasket, pinion and carrier shims, pinion nut, marking compound, crush sleeve and ring gear bolts. Carrier bearings are sold separately.

When ordering Dana/Spicer Differential Parts provide bill of material number. This number is stamped on the right hand side axle tube. It's a number like 603XX-X, 604XX-X or 605XX-X. With this number we can tell you exactly which components the factory used in the assembly of your differential

You get the right parts the first time!


DANA 44 Differential Parts

Part Numbers Description Price

25806X 3.92 & Up, Open loaded carrier incl. spide/side gears, cross shaft & thrust washers $99.42





25808X 3.73 & Down, Open loaded carrier incl. spide/side gears, cross shaft & thrust washers $101.81

7007382X 3.73 & Down, Open loaded carrier incl. spide/side gears, cross shaft & thrust washers $198.42

706020X 2.72 - 3.73 Case Loaded $139.89

706020X 3.73 & Down, Open empty case $156.72

706021X 3.92 - 5.89 Case Loaded $181.52



Installation Tool, Your Cost is $48.98 + S&H



706021X 3.92 & Up, Open loaded carrier incl. spide/side gears, cross shaft & thrust washers $181.52

706024X 2.72 - 3.73 Case Open empty case $64.74

706024X 3.73 & Down, , Open empty case $64.74

706025X 3.92 - 5.89 Case Open empty case $64.74

706025X 3.92 & Up, , Open empty case $64.76

706921X 3.73 & Down, Open loaded carrier incl. spide/side gears, cross shaft & thrust washers $153.8

706947X 3.92 & Up, Open empty case $64.04

707021X 3.73 & Down, Open loaded carrier incl. spide/side gears, cross shaft & thrust washers $142.26

707022X 3.92 & Up, Open loaded carrier incl. spide/side gears, cross shaft & thrust washers $149.56

707116X 2.72 - 3.73 Case (Empty) Trac-Loc $122.06

707193X 3.92 - 5.89 Case (Empty) Trac-Loc $103.86

DTS28RMK Bearing/Overhaul Kit Early $107.87
Note: Ford has installed two types of bearings in the Dana 44IFS, recommend disassembly before ordering.
DTRA28LRMK Bearing/Overhaul Kit Late $110.20

SA-35-2066 Bearing/Overhaul Kit (Reverse gear setup) Timken $125.97

706027X Internal Parts Kit 30 Spline $97.58

706031X Inner Pinion Bearing $17.32

706030X Outer Pinion Bearings $12.32

BCA-A-37 Carrier Bearing $22.98

PA5711 Axle Superior Jeep Cherokee & TJ 86-87, 25% to 30% Stronger than stock $159.00
Superior Alloy
Induction Hardened
Rolled Splines
Kits Complete with
Studs, Bearings and Seals

PA5712 Superior Jeep Cherokee & TJ 86-87, 25% to 30% Stronger than stock $159.00

EV44LF Axle Kit Bronco Front 71-77 30 spline complete with Big U-joint $214.99
Big U-joint provides for extreme duty. Kits include bearings, studs and seals.
EV44RF Axle Kit Bronco Front 71-77 30 spline complete with Big U-joint $214.99

706352X Trac-Loc Clutch Pack $90.94

706926X Trac-Loc Gear & Clutch Pack $262.83

707115X Dana Trac-Loc 2.72 - 3.73 IFS. $348.16

707150X Dana Trac-Loc 3.92 - 5.89 IFS $381.39

707147X Dana Trac-Loc 2.72 - 3.73 IFS. $311.98

707199X Dana Trac-Loc 3.92 - 5.89 IFS $313.96

Differential Cover
Front and rear Jeep, Ford, GM, Dodge and Scout 2.5 quarts to 6 quarts

Increase the fluid capacity, you will find that the fluid will run 15 to 20 degrees cooler. $240.00






Positraction Differential Assembly Options
Description
Part Number
Price
Whats the difference in Positractions?

Check out Differentials whats the Difference
ARB 35 Spline 3.92 & Up
RD109*
$1169.62

ARB 33 Spline 3.92 & Up
RD113*
$1115.80

ARB 30 Spline 3.92 & UP
RD116*
$1115.80

ARB 30 Spline 3.7. & Down
RD117*
$1115.80

Dana Trac-Loc 2.72 - 3.73 707115X
$348.16

Dana Trac-Loc 3.92 - 5.89 Note (1) 707150X
$381.39

Dana Trac-Loc 2.72 - 3.73 Note (2) 707147X
$311.98

Dana Trac-Loc 3.92 - 5.89 Note (2) 707199X
$323.96

Detroit Locker 2.72 - 3.73 187SL-12B
$569.69

Detroit Locker 3.92 - 5.89 187SL-12A
$569.69

Detroit Locker (IFS) 2.72 - 3.73 187SL-16D
$569.69

Detroit Locker (IFS) 3.92 - 5.89 187SL-16C
$569.69

LockRight Chevy, Dodge & Ford Front 67-98. Jeep CJ Rear (30 spline) 2410
$329.94

LockRight Jeep CJ Rear (19 spline) 2413
$349.43

LockRight Jeep (10 spline) 2415 or 2416
$350.28

Powertrax no-Slip 27 spline open 92-0444-2700
$436.19
Don't get stuck!

Powertrax no-Slip 30 spline open 92-0444-3000
$436.19
Don't get stuck!

Powertrax no-Slip 30 spline Trac-Loc Case Note (1) 92-0444-3020
$453.39
Don't get stuck!

* Air Compressor 12 Volt Compressor CKMA12 $309.38

Note (1) Side gears are not machined for C-Clip Axles
Note (2) Side Gears are Machined for C-Clip Axles


--------------------------------------------------------------------------------

We offer a complete line of products to improve the perfromance of your vehicle, check out the following links:

22% Overdrive Save 20% in fuel economy!
Diesel Programmers add power & improve economy!
Traction performance problem solved by our positraction kits

[RustyCrank]

Wow, great info and thanks for solving this for me. I'm running a pretty healthy 400 ponies in my TPIS 350 backed up by a performance built 700R4 so its good to know the rear will stay together when my foot gets heavy! While it's very respectable 0-60 barking the tires in second, its mostly used for getting the boat to the lake (on time!) and not much for the racing but I'm an old horsepower raised boy from the 60's. Besides, the boat is pretty heavy too. I'm just mostly concerned about getting the freeway RPM's down about another 500 or so and need to do the math on the best ratio now that I know the options are there.

The best part is getting trade offers on the boat launch for brand new Silverado's and turning them down!

[Captainfab]

Ah yes a Dana 44. I always relate those to GMC's with leaf springs in these trucks and I forget they did come on coil suspensions too. If you step up to a 3.73 that is a pretty good gear to run behind a 700R4. Of course that is somewhat dependant on what tire size you're running.

Than's a real nice looking truck. I especially like the back end. That's different and nice. Do you have a bigger pic of the front of your truck?

[blackedoutharley]

And now that you have the info you need allow me to hijack the thread completely...

While you're getting pictures of the front end for Capt. Fab can you also get a bigger picture of the 3rd brake light with application info as well as the rear bumper?

Please?

[Captainfab]

I forgot about clicking on your avatar pic....that brings up a bigger pic. I thought about making a similar grill and headlights for my first '63 many years ago, but never got that far. What is the application for those headlights?

[jbgroby]

HI,
I have the same rear end a DANA 44 and switched from 3.90 to 3.23 see album link. bought everything from Precision Gear.

http://rides.webshots.com/album/570438270cjSEvE

Jake

[GMR-PERFORMANCE]

Hope no one minds if I hijack the thread a bit more...

The talk about brakes makes me think about the last summer before I tore the truck down for the frame off..

I was at a local car show/ parts swap meet. There was a guy there in a Z06 vette, a big sign in the front of the car at the show listing all the super duper go fast parts yada yada.. Long story short we leave at the same time and we know that we want to run them!!! Well we get the chance and in front of the vette is a 75 econline van going maybe 35 in a 65, so all clear the guy in the vette drops the hammer tires haze and the rear slides out and he is going around this van. I am right on his rear end and hammer the throttle well I almost park the truck in the back of the vette. I swear this guys eyes are the size of cue balls No chit.. I toy with him back on and off the gas and he sees that if he moves over I am going to get around so he does and I go rolling by .. little small block at 7600 rpm ( what a sound) so I get by and then go to stop for my turn...... AHHHH yes four wheel drum brakes.. I am two footing the pedal , with my hands under the wheel trying to push harder... I go smoking past my turn.. ... I get the old girl stopped and the front shoes are smoking so bad it looks like the truck is on fire!!! ... Was able to limp it home to find that all four shoes had shed the lining.. and made a big mess inside the drums..


SO I am looking forward to the new disc brakes.. Hope you guys enjoyed the side bar humor.

[RustyCrank]

I had so much fun changing everything I could get a plasma cutter or mig welder to reach on this truck, it's getting hard to remember everything...but here's a brief list of the majors;

88 Chev Celebrity headlights -the top view line angles followed the curve of the front end perfectly so they could be aligned. I had to cut a pocket into the core support but not too radical.

1/8 X 1" flat bar v-cut in the middle to follow curved front after headlights were installed. Made the combs first and got the shape I wanted then made the bars. The outer ends attach with screws so I can get to the headlights for servicing. I originally planned to do in aluminum, but later decided on steel for cost and the mono paint scheme

88 Acura door handles - once again they have a curve that fits the door perfect. Most effort then was making a fulcrum linkage to activate the stock inner door latch...then a trick to get the door locks working but thats a whole story in itself....

86 Blazer mirrors - I really liked how the shape followed the cab lines. legnthened the posts and built the mounting bracket inside the door, frenched in some tubing with a rubber gromet in the bottom.

72 C-10 tailgate sacrificed its ends with support arms to be cut into the 62 tailgate before the custom rolled panel was welded in. I replaced the latch springs with lighter ones on the ends so I could use a tailgate latch from a 66 El Camino mounted to the inside of the tail gate. The tonneau cover has a hidden release so you can get into it after rolling up.

72 Sport bumper with 66 Lincoln backup lights frenched in, and notched for the 4" exhaust tips (I stole that look off my G37 daily driver) The trailer hitch reciever is hidden behind the license plate that flips up when needed for boat hauling duty.

72 steel bed floor shortened 20'' to fit the short box. It was amazing how all the bolt holes lined up!

A freind gave me a 70 Buick Riviera so it got to donate power window regulators that I siamezed into the stock regulators. The steering column was also used.

92 Silverado bench and the front mounting holes lined right up to stock!

86 IROC Z28 instrument cluster modified to fit the stock 62 housing. I used the whole wiring harness from the Z28 so the VSS in the speedo was used with the FI computor.

[RustyCrank]

Sorry I forgot to mention the 3rd brake light came from a 96 Suburban and it fits perfectly under that back eyebrow curve. I actually bought one brand new when I was first building the truck - saw a new Burb going down the freeway and I just knew that LED light was the future for us all!

[GMR-PERFORMANCE]

pic of the thrird light please!!!! I have been struggling with this on my own truck as even with LED tail lights I have a bad feeling about a grey hair trying to park there caddie into the box of my truck

[RustyCrank]

Sorry, had to run out to the garage and snap a pic for you. Your fear is exactly what motivated me!! Way too much work to get bumped.

BTW, I have a camera mounted above the license plate pointed right at the hitch ball for backing up to the trailer - did that after a few "hitching by feel" incidents required repainting the bumper.

Let me know if this helps or need a better shot

[GMR-PERFORMANCE]

That looks great how a rear shot as well.. What year is that light off make model maybe even a GM prt number

[Captainfab]

Thanks for the info

[RustyCrank]

Originally Posted by GMR-PERFORMANCE

That looks great how a rear shot as well.. What year is that light off make model maybe even a GM prt number

I'll get another rear shot this weekend in the daylight if I can, but found this source for you to get a new one. Wrecking yard units are usually pretty weathered.

http://www.1aauto.com/1A/TailLights/...tm_content=LTL

[bama63]

nice ride and great skillz