Alright, so this 1 HOUR 30 MINUTE video will show you how to rebuild a GM passenger car 10 & 12 bolt rear end. And yes, not only do I work on motorcycles, but cars as well.

I have owned my 70′ Chevelle since 2005, and really haven’t touched it in a few years. I’m really itching to do a motor/trans swap, and that all can’t happen until a upgrade the 8.2 peg leg 10 bolt with 2.73 gears.

So I bought a core 2.73 non-posi 12 bolt, and decided to rebuilt it with a new posi, gears, and axles. Also added a 1350 forged yoke, TA rear cover, and had ford housing ends welded on, to try and make it as strong as possible.

Models Covered

Bel Air: 1964 – 1972
Biscayne: 1964 – 1972
Camaro: 1967 – 1972
Caprice: 1966 – 1970
Chevelle / Malibu: 1964 – 1972
Chevy II: 1964 – 1968
El Camino: 1965 – 1972
GTO: 1970 – 1972
Impala: 1964 – 1972
Monte Carlo: 1970 – 1972
Nomad: 1968 – 1972
Nova: 1964 – 1972
Trans Am: 1969 – 1972
Wildcat: 1964 – 1972

Along with the video, below are some of the tools and parts needed to get the job done.

Tool List

HF 20 Ton Press – A press is required to press the pinion bearing on/off. Since ring & pinion set up is a trial and error process, you will be removing/installing the bearing several times.

OTC 1130 bearing splitter – This tool is useful to get under the pinion bearing for removal with press.

Harmonic balancer puller – Used to remove stubborn pinion yokes.

Dial indicator with magnetic base – For checking backlash.

Bleepin Jeep yoke holder – The beefiest yoke holder with provisions to use a cheap 3/4″ black pipe for leverage.

30″ breaker bar – To crush that pinion sleeve.

1-1/8″ impact socket – Pinion nut size

IN-LB dial torque wrench – Needed for setting pinion and carrier bearing preload.

Axle bearing puller – Also can be rented from auto parts store.h

Bearing race driver – Also can be rented from auto parts store.

RTV silicone

3/4″ black pipe 36″L – Use with Bleepin Jeep yoke holder.

Pen magnet – For removing c-clips.

Prybar/crowbar – To remove carrier.

Center punch – Mark the caps before removing them.

Kroil – This stuff is expensive.

BOA strap wrench – For holding the carrier.

Part List

Eaton posi 19554-010 – For 3.08 to 3.90 gears.

Motive gears 3.73 – Go with whatever ratio you want.

Moser axles c-clip style – I went with custom axles for Ford ends.

Yukon Gear overhaul kit

GM posi additive

Gear oil

1350 forged yoke – Stock is 1330.

1330 to 1350 u-joint conversion

TA cover – This cover preloads the carrier caps slightly to improve strength.

ARP ring gear bolts – These are longer and stronger than what comes in most kits.