Question about 2001 Chevrolet Astro

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Need to replace or repair my pinion shaft bearing in 1991 gmc astro van

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  • Chevrolet Master
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Easy to do ,just look in manual

Posted on Nov 17, 2008

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I just got a 1998 astro and it had a bad front pinion bearing but I could drive it.Got a used diff. now the van will not move. The front drive shaft spins but the van will not move at all


If the shaft is spinning then you have either a hub or shaft spline issue or the joint is bad or shaft is popped out of joint in the rubber boot.

Oct 22, 2015 | Cars & Trucks

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How do I change rear wheel bearings on my 1992 GMC Safari van


Put the rear up on jack stands and remove the wheels and brake drums. Then unbolt the rear differential cover and drain the gear oil. Then, you remove the pinion securing bolt. DO NOT ROTATE THE WHEELS AS THIS CAN CAUSE THE PINION GEARS TO FALL OUT. Push the rear axle shaft inward toward the vehicle and remove the "C" clip that secures the axle to the pinion gears. Then pull the axle shaft outward and out of the axle housing. Inspect the axle shaft for scuffing and excessive wear on the place where the wheel bearings rest. If there is excessive wear, you can use a "repair bearing", which is modified to install so it runs on an unworn part of the axle shaft. Otherwise a regular replacement bearing is fine. You need a slide hammer removal tool to extract the old bearing from the axle housing, and a bearing install tool to insert the new one without damage. Once the new bearing is in, reinsert the axle shaft, secure with the "C" clip, and pull outward to latch the "C" clip into its recess. Install the pinion bolt. Reinstall the differential cover with appropriate gasket or sealer. Fill differential with approved gear oil in the recommended amount. Ensure that if the rear is a positraction rear end there may be an additive required to the gear oil for proper operation.

Sep 24, 2015 | GMC Cars & Trucks

1 Answer

Can I tighten the bearings on the differential shafts of an Astro 1999


If you are talking about the peace where the drive shaft bolts on that is called a yolk and the bearing behind that is a pinion bearing and there is a crush colar in there now did the nut just loosen or dose the hole shaft move if the nut just loosened yes you can tighten it back you but don't give crazy if the shaft is moving you have to rebuild the rear end I hope this helps

Aug 29, 2014 | 1999 Chevrolet Astro

1 Answer

How to fix differential of astro van 1999


these bearing are adjusted with shim packs if you have never worked on a differential before you really need to bring it to a experienced shop due to factory specialized service tools needed for proper repair you will need a bearing press, a micrometer , a dial indicator , and a pinion depth gauge and specialized knowledge on the usage of these tools

Aug 29, 2014 | 1998 Chevrolet Astro Van

2 Answers

Rear pinion removel on a GMC Jimmy 1998 4x4 to replace bearing


Pull the rear cover, remove the axles, remove the carrier assembly, drop the drive shaft off the yoke,remove pinion nut, remove the yoke and knock the pinion out with wooden or brass hammer. The pinion bearing will have to be pressed off and on with proper shim. reinstall with new crush sleeve. There is alot specs and readings yoy need to follow so it is best to get a repair manual and follow it to the tee.

Jul 19, 2014 | 1998 GMC Jimmy

1 Answer

How to fix the rear differential pinion seal on a 98 gmc sonoma


remove the tail shaft . undo the pinion nut with a impact gun and pull the pinion off the shaft. Using a suitable tool pick the seal out of the housing. replace it with a new seal leaving it flush with the housing edge. Check the pinion for a groove where the old seal was running . If there is one ,fit a "speedie" sleeve ( from a bearing shop) or get a new pinion . reinstall the pinion and do up the nut until it touches the pinion on the shaft. Add up to a 1/4 more turn or less . Too much will over tension the spacer between the bearings and cause rapid bearing failure. Refit the tail shaft

May 07, 2014 | Cars & Trucks

1 Answer

Penion shaft seal and bearing removal and repair


You need a heavy press to replace the bearing so they can be done at home. Remove the carrier from the banjo housing and have a machine shop replace the pinion bearings and carriers bearings

Jul 15, 2012 | 1999 GMC Sierra

1 Answer

2002 gmc 3/4 tom 2 wheel rear axle seal replacement, free floater , how do remove the axles ?


got me here but if this is like a astro van then you have take the plate off the back of the diff and inside you will see the crownwheel ,now where the suns and planets are their is a 10mm bolt head ,take this bolt out and then the planet wheels support shaft comes out ,once this is out remove the planet gears and then you will see the end of the half shaft on which is U shaped retaining clip just slide it out ,you will still no doubt need a puller to remove the half shaft or turn wheel opposite way around and place a plank against it and hit with a 7kg hammer as this will often do it for you ,the new seal comes with bearing as a complete unit .this is the procedure for a astro van but i think it may be the same axles on this and your vehicle

Mar 08, 2011 | GMC C2500 Cars & Trucks

1 Answer

How to remove bearings on 1998 gmc jimmy axle shaft bearings and pinion bearing?


if diying and axle bad replace the whole unit from salvage or rebuild shop.if changing the bearings its a lot of work and you will need some special tools to put back together .first you need to use a lift or again have to remove unit from truck, disconnect battery remove drive shaft,remove pinion nut need large breaker bar loosen bolts to rear cover drain fluid remove cover have someone push axles toward center remove c locks slide out axles best way to remove bearings is slide hammer bearing removal unit remove rear [gears] dont loose shims will see pinion bearing bearing remove and replace now 2 put it back.need shim package, red lead, 4 ring and gear mesh adjustments ,,

Jul 07, 2009 | 1997 GMC Jimmy

1 Answer

How do I replace the pinion bearing?


THAT IS A JOB FOR A SHOP THAT SPECIALIZES IN THAT WORK.THERE ARE MAT SPECIAL TOOLS REQUIRED.IF IT IS NOT DONE RIGHT U CAN DAMAGE THE GEARS AND END UP SPENDING WAY MORE MONEY THAN U NEED TO

May 01, 2009 | Chevrolet Astro Cars & Trucks

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