|
12-12-2018, 10:59 PM
|
#1 |
|
Registered User
Join Date: Apr 2013
Location: Austin, TX
Posts: 592
|
Locking rear diff??
I'm embarrassed to ask this, but I know next to nothing about rear differentials....
I've got a 1972 C20 Suburban. Rear end is a Dana 60 based on both the options list on the glove box door, and the casting on the differential housing itself. My question is, on my 2wd truck, is the Dana 60 lockable, and if so, how? I don't do any aggressive "off roading" or "rock climbing" but the truck does see a fair number of camping trips and un-paved excursions. Airing down the tires and the ability to lock the rear diff would cover almost any situation this truck will ever find itself in. Thanks for the help, Greg |
|
|
|
12-12-2018, 11:47 PM
|
#2 |
|
Senior Member
 
Join Date: Dec 2006
Location: Studio City, Calif.
Posts: 2,886
|
Re: Locking rear diff??
I don't know much myself but I believe that Dana 60 could have been ordered with a Power-Loc option. This would show on your option list and if you jack up one rear wheel (in neutral) you wouldn't be able to turn it easily.
I think you can upgrade to power loc for some Dana ratios like 4.10 for around $3-400 plus set-up cost. But like I said, I really don't know much. If you have a locker, it would be automatic, not something you could turn on for special occasions. -BA
__________________
'69 GMC C2500 Custom Camper, 8 1/2' bed, New GM 350, NP 435 Close Ratio 4spd. Trans., 3.73 Dana-60 open.Camper and Trailer wiring, PS, PB, AC, tach , three gas tanks, stereo speakers, 2nd owner, Work-Truck supreme. |
|
|
|
|
12-13-2018, 07:33 AM
|
#3 |
|
Registered User
Join Date: Apr 2013
Location: Austin, TX
Posts: 592
|
Re: Locking rear diff??
Hmmmm....interesting, I'll have to take a closer look then.
__________________
1972 C20 Suburban 1964 Corvette Coupe 1997 Lexus LX450 |
|
|
|
|
12-13-2018, 11:02 AM
|
#4 |
|
Registered User
Join Date: Apr 2011
Location: Klein Texas
Posts: 3,852
|
Re: Locking rear diff??
Dana offered three different differential cases for the Dana 60.
An open case - non limited slip. The Trac Lok which is a clutch based limited slip differential case usually offered in car lines. And the Powrlok which is a limited slip with a movable pin to exert even more power to the clutches. The aftermarket has many choices for the Dana 60 including cable, air and electric actuated lockers.
__________________
My Classics: '72 K20 Suburban + '65 Dodge Town Wagon '72 Corvette Roadster +'67 Corvette Roadster '73 Z-28 Camaro '63 Ford SWB Uni Pickup '50 Ford Coupe |
|
|
|
|
12-13-2018, 10:10 PM
|
#5 |
|
Registered User
Join Date: Dec 1999
Location: Austin, TX, USA
Posts: 7,728
|
Re: Locking rear diff??
Howdy,
I see you over on the Corvette board, love your car. One of the least obtrusive and very effective diffs would be a TruTrac which is a Gleason style gear limited slip. The cheap way is the TracLock and the best OEM setup from that vintage is the PowerLock. But there are many more solutions out there for the Dana 60. My 72 Sub has the HO52, so the only option is the Maximum Traction (Detroit) differential. Most of this echoes what Big Dave said, and I see he has a mid-year as well!
__________________
44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax |
|
|
|
|
12-14-2018, 08:09 AM
|
#6 |
|
Registered User
Join Date: Apr 2013
Location: Austin, TX
Posts: 592
|
Re: Locking rear diff??
Thanks Mike, and thanks for the info! I'll have to first figure out what exactly is in my truck, and then shop around to see what I want/need for this application.
__________________
1972 C20 Suburban 1964 Corvette Coupe 1997 Lexus LX450 |
|
|
|
 |
| Bookmarks |
| Thread Tools | |
| Display Modes | |
|
|
Linear Mode
