Rear Axle seals - The 1947 - Present Chevrolet & GMC Truck Message Board Network

70-K10-292 · 04-07-2002, 10:02 PM

Does anyone but me have a 70K-10 with a GM-2 rear axle ? I have to change the rear axle seals.It doesent seem too complicated according to the sevice manual any short cuts or easier ways to do this ? I know I have to drain fluid pull cover remove pinion shaft lock screw and pull pinion shaft,push axle shaft in toward center and remove C lock and pull axle shaft out,remove and install new seal.Seems simple right ?

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1970 K-10 292 Longbed stepside powersteering but manual brakes!Factory step bumper,Deluxe gauges no Tach 4 speed manual 1 out of 464 made with protectoplate intact.Its basic for a farm truck

70shortnphat · 04-07-2002, 10:41 PM

Just a walk in the park.

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1970 short bed fleetside

REPO1 · 04-07-2002, 10:42 PM

Very easy to do.

------------------
Sylvan Lake, Alberta, Canada

1970 Chevy C20 Custom Camper
402BB Turbo 400 trans.
A/C, P/S, manual brakes.
75,800 Original Miles!!
'71 Camaro SS 402/T400 resto
'97 Z28 -- Runs 11.5 @ 118mph.

Scrub · 04-07-2002, 10:44 PM

Have one of those "Magnet on a stick" thingys around. Put sticky grease on the c clips when you put them back. Probably want to have some emory cloth to clean up the axle seal surface. Get the stuff that comes in a roll about 1.5 inches wide and get about 3 feet of like 200 grit and about 3 feet of super fine stuff, like 500 or 1000 grit.

Hve fun.

------------------
Scrub
70 GMC 1,000,000 + miles
72 K-20 project, 456 Dana60 front, Corp14 rear w/locker, 265R19.5 tires 20-ply. Warn 12k winches both ends, Cross-over steering with raised tie-rod, Powerbox steering, 4500 watt 120-AC power, Air, Hydraulic aux power, 4 inch lift, 5000 lb air-bags both ends.

*Fast68Chevy* · 04-07-2002, 10:45 PM

GM-2 ?
you mean 12 bolt ?
remove diff cover(1/2" socket)
remove brake drums
rmeove lockshaft lockset screw(pointing and threaded into the carrier from the pass side of truck, 7/16" wrench)
push out the lock shaft that the spider gears ride on, dont have to completely remove it, just enough so that when you push the axle shafts towards the pumpkin the C clips wil fall off the ends of the shaft

pull shafts and use end of the axle shaft to pry out the seals, use big socket to tap in new seals and then reassemble the same way it all came apart

sometimes i like to type, i dont consider it practice anymore- ive been typing for two years now and havent gotten any better, actually i got worse at it, i stil type with 3 or 4 fingers max just like since day 1 on this thing
,
good luck

------------------
Randy- Lincoln, IL
r68c30@hotmail.com

71 C-10, trying to assemble....sigh..
parting out 5.0LTPI '81 cutlass supreme brougham
*Paint is overrated
© RSS Enterprises 2000

[This message has been edited by Fast68Chevy (edited April 07, 2002).]

70-K10-292 · 04-08-2002, 06:13 AM

Yes 12 bolt non Dana axle,Is this a common axle ? I don't need a slide hammer do I to pull the axle after clip is removed do I ?

------------------
1970 K-10 292 Longbed stepside powersteering but manual brakes!Factory step bumper,Deluxe gauges no Tach 4 speed manual 1 out of 464 made with protectoplate intact.Its basic for a farm truck

JimKshortstep4x4 · 04-08-2002, 09:22 AM

The 12 bolt axle is very common. I have had problems buying the seals so I would suggest that you take one with you. Autozone and NAPA
carry them but for some reason they tend to give you the wrong seal. (Maybe you have good luck with your parts store).

Be sure and blow out/clean out your vent. If that gets plugged it will force grease out of the seals. You will want to look at your axles to see if the bearing surface is spalled or not. If it is you will want to replace the axle(s) and bearing(s).

Good luck!

Jim

70-K10-292 · 04-08-2002, 11:30 AM

Yes I checked the vent first hoping it would be the problem,A GM powertrain tech told me to look for this and he gave me the new vent ends to prevent something from nesting in the hose !Now if I could just find them !

------------------
1970 K-10 292 Longbed stepside powersteering but manual brakes!Factory step bumper,Deluxe gauges no Tach 4 speed manual 1 out of 464 made with protectoplate intact.Its basic for a farm truck

70-K10-292 · 04-08-2002, 11:34 AM

I could read the seal # behind the axle Napa looked up the seals and crossed the # and came up with the same seal.So far so good I will find out more when I tear it apart!

04-07-2002, 10:02 PM	#1
70-K10-292 Registered User Join Date: Apr 2000 Location: Peru,NY Posts: 183	Rear Axle seals Does anyone but me have a 70K-10 with a GM-2 rear axle ? I have to change the rear axle seals.It doesent seem too complicated according to the sevice manual any short cuts or easier ways to do this ? I know I have to drain fluid pull cover remove pinion shaft lock screw and pull pinion shaft,push axle shaft in toward center and remove C lock and pull axle shaft out,remove and install new seal.Seems simple right ? ------------------ 1970 K-10 292 Longbed stepside powersteering but manual brakes!Factory step bumper,Deluxe gauges no Tach 4 speed manual 1 out of 464 made with protectoplate intact.Its basic for a farm truck __________________ Where Am I ? How did I get Here ? 1970 K-10 292 Longbed stepside (now a stakerack)powersteering ,Factory step bumper,Tow Hooks,Deluxe gauges Tach & Throttle, 4 speed manual 1 out of 464 made with protectoplate intact .

04-07-2002, 10:41 PM	#2
70shortnphat "See the U.S.A....." Join Date: Apr 2002 Location: Richmond TX. Posts: 269	Just a walk in the park. ------------------ 1970 short bed fleetside __________________ 1970 short bed fleetside 1949 all origional chevy 3600 1974 camaro Richmond , Texas(just S.W.of Houston)

04-07-2002, 10:42 PM	#3
REPO1 Shortbox wanna-be. Join Date: Mar 2002 Location: Fort St.John, British Columbia, Canada Posts: 773	Very easy to do. ------------------ Sylvan Lake, Alberta, Canada 1970 Chevy C20 Custom Camper 402BB Turbo 400 trans. A/C, P/S, manual brakes. 75,800 Original Miles!! '71 Camaro SS 402/T400 resto '97 Z28 -- Runs 11.5 @ 118mph. __________________ 1970 Chevy C20 Custom Camper 402BB Turbo 400 trans. (Slowly becoming a '70 shortbox 1/2 ton) '71 Camaro SS 402/T400 resto '97 Z28 (11.41@127MPH)

04-07-2002, 10:44 PM	#4
Scrub Collector of rusty Items Join Date: Dec 2001 Location: Sisters,Oregon USA Posts: 731	Have one of those "Magnet on a stick" thingys around. Put sticky grease on the c clips when you put them back. Probably want to have some emory cloth to clean up the axle seal surface. Get the stuff that comes in a roll about 1.5 inches wide and get about 3 feet of like 200 grit and about 3 feet of super fine stuff, like 500 or 1000 grit. Hve fun. ------------------ Scrub 70 GMC 1,000,000 + miles 72 K-20 project, 456 Dana60 front, Corp14 rear w/locker, 265R19.5 tires 20-ply. Warn 12k winches both ends, Cross-over steering with raised tie-rod, Powerbox steering, 4500 watt 120-AC power, Air, Hydraulic aux power, 4 inch lift, 5000 lb air-bags both ends. __________________ Scrub Sisters, Oregon - Home of the Sisters Rodeo. 70 GMC 1,000,000 + miles 72 K-20 project, 456 Dana60 front, Corp14 rear w/locker, 265R19.5 tires 20-ply. Warn 12k winches both ends, Cross-over steering with raised tie-rod, Powerbox steering, 4500 watt 120-AC power, Air, Hydraulic aux power, 4 inch lift, 5000 lb air-bags both ends.

04-08-2002, 06:13 AM	#6
70-K10-292 Registered User Join Date: Apr 2000 Location: Peru,NY Posts: 183	Yes 12 bolt non Dana axle,Is this a common axle ? I don't need a slide hammer do I to pull the axle after clip is removed do I ? ------------------ 1970 K-10 292 Longbed stepside powersteering but manual brakes!Factory step bumper,Deluxe gauges no Tach 4 speed manual 1 out of 464 made with protectoplate intact.Its basic for a farm truck __________________ Where Am I ? How did I get Here ? 1970 K-10 292 Longbed stepside (now a stakerack)powersteering ,Factory step bumper,Tow Hooks,Deluxe gauges Tach & Throttle, 4 speed manual 1 out of 464 made with protectoplate intact .

04-07-2002, 10:45 PM	#5
Fast68Chevy Account Suspended Join Date: May 2000 Location: IL Posts: 0	GM-2 ? you mean 12 bolt ? remove diff cover(1/2" socket) remove brake drums rmeove lockshaft lockset screw(pointing and threaded into the carrier from the pass side of truck, 7/16" wrench) push out the lock shaft that the spider gears ride on, dont have to completely remove it, just enough so that when you push the axle shafts towards the pumpkin the C clips wil fall off the ends of the shaft pull shafts and use end of the axle shaft to pry out the seals, use big socket to tap in new seals and then reassemble the same way it all came apart sometimes i like to type, i dont consider it practice anymore- ive been typing for two years now and havent gotten any better, actually i got worse at it, i stil type with 3 or 4 fingers max just like since day 1 on this thing , good luck ------------------ Randy- Lincoln, IL r68c30@hotmail.com 71 C-10, trying to assemble....sigh.. parting out 5.0LTPI '81 cutlass supreme brougham *Paint is overrated © RSS Enterprises 2000 [This message has been edited by Fast68Chevy (edited April 07, 2002).]

04-08-2002, 09:22 AM	#7
JimKshortstep4x4 Senior Member Join Date: Jul 2001 Location: Muskegon,MI,USA Posts: 6,026	The 12 bolt axle is very common. I have had problems buying the seals so I would suggest that you take one with you. Autozone and NAPA carry them but for some reason they tend to give you the wrong seal. (Maybe you have good luck with your parts store). Be sure and blow out/clean out your vent. If that gets plugged it will force grease out of the seals. You will want to look at your axles to see if the bearing surface is spalled or not. If it is you will want to replace the axle(s) and bearing(s). Good luck! Jim __________________ 1971 Shortbox step side 4x4, 350 sbc, 3:07 rear end 1965 Impala SS 400 sbc, Muncie rock crusher 1966 Impala SS 396 bbc, TH 400 1969 El Camino, 350 sbc, TH 350 1971 Snowplow built on a Blazer frame 1972 GMC Short bed, stepside, TH 400, 427 BBC

04-08-2002, 11:30 AM	#8
70-K10-292 Registered User Join Date: Apr 2000 Location: Peru,NY Posts: 183	Yes I checked the vent first hoping it would be the problem,A GM powertrain tech told me to look for this and he gave me the new vent ends to prevent something from nesting in the hose !Now if I could just find them ! ------------------ 1970 K-10 292 Longbed stepside powersteering but manual brakes!Factory step bumper,Deluxe gauges no Tach 4 speed manual 1 out of 464 made with protectoplate intact.Its basic for a farm truck __________________ Where Am I ? How did I get Here ? 1970 K-10 292 Longbed stepside (now a stakerack)powersteering ,Factory step bumper,Tow Hooks,Deluxe gauges Tach & Throttle, 4 speed manual 1 out of 464 made with protectoplate intact .

04-08-2002, 11:34 AM	#9
70-K10-292 Registered User Join Date: Apr 2000 Location: Peru,NY Posts: 183	I could read the seal # behind the axle Napa looked up the seals and crossed the # and came up with the same seal.So far so good I will find out more when I tear it apart! __________________ Where Am I ? How did I get Here ? 1970 K-10 292 Longbed stepside (now a stakerack)powersteering ,Factory step bumper,Tow Hooks,Deluxe gauges Tach & Throttle, 4 speed manual 1 out of 464 made with protectoplate intact .

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