Hard Question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

lts70 · 01-20-2009, 12:10 PM

This may be hard to understand, I know it will be hard to explain but I will give it a try.

When I switched out my rear axels to 5lug from 6lug last night I had a dished washer fall out from between my carrier and spider gears in my posi differential. I had not pulled the retaining pin (The pin that holds the axles in a position so that the C clips that hold the axle in place do not fall out) out all of the way out so it came from the opposite side spider gear than the side with the bolt that holds this pin in place. I didn’t see it fall out but this is the only place I could find for it to go back in. My question is, there was not a dished washer on the other spider gear opposite, is that normal?

lowriden58 · 01-20-2009, 01:02 PM

should be one on each spider gear

larry may · 01-20-2009, 01:46 PM

x2 lowriden58 said, be correct,

lts70 · 01-20-2009, 01:49 PM

The two dished washers at the bottom of your picture are what I am talking about. Can you buy just the washer anywhere? If it has been running good with out it will it hurt it to keep running it with only one? Would they ever remove one for shimming reasons? Thanks a ton.

dwcsr · 01-20-2009, 02:10 PM

The washers are available from GM dealers. If the washer has been missing for a long time you may want to get a spider kit and replace the set.

lts70 · 01-20-2009, 02:36 PM

Well I will look for the other washer again but I don't think it could have gone anywhere but where the other one fell, right to the bottom. If I can not find it I will try just replacing the washer. It has had no problem or made any noise, all of the teeth look great.

Thanks guys, i guess my question wasn't so hard after all.

lts70 · 01-20-2009, 04:22 PM

I checked with the local GM dealer and they do not sell the washers separate. I checked LMC but they only offer the entire spider kit as well and it is not cheap at ether place. Crap! I sure hope it is in there still, though I highly doubt it because I looked for it real good last night. Why is it that you get a project alost done and half of the time you run into crap like this.

So if it was never there in the first place and I have been driving the crap out of it for the last 10 years, and who nows how long it was gone before I got the truck, do I mess with a good thing?

LOW DOUGH · 01-20-2009, 04:33 PM

Did you change your axle shafts from 6 lug to 5 lug? If so, are they stock shafts? (from a 71 or 72) Or are they aftermarket axle shafts? Because I thought you couldn't do that. I thought the 71 & 2's are wider than the 67 to 70 's

lts70 · 01-20-2009, 05:01 PM

In 70 half way through the year they changed to the 71-72 length with thier rear axle. All you have to do is measure and see if you have the long or short one. I had the longer axle and could use the stock 71-72 axles. I got hardened axles for a 72 chevy truck from Summit racing for $95 a piece. If you have the shorter axle you have to get the conversion axles from CPP or ECE, ect.

airdale94 · 01-20-2009, 05:26 PM

It's probably just froze to the spider gear.

LOW DOUGH · 01-20-2009, 06:44 PM

Quote:

Originally Posted by lts70

In 70 half way through the year they changed to the 71-72 length with thier rear axle. All you have to do is measure and see if you have the long or short one. I had the longer axle and could use the stock 71-72 axles. I got hardened axles for a 72 chevy truck from Summit racing for $95 a piece. If you have the shorter axle you have to get the conversion axles from CPP or ECE, ect.

Thanks.

I have a 69 axle under my 71. Guess I'll just have to rebuild the 71 to get my 5 lug back.

Highjack over

lts70 · 01-21-2009, 11:13 AM

Quote:

Originally Posted by airdale94

It's probably just froze to the spider gear.

You where right on. I can't believe I didn't see it before. I grabed a work light from my Jobsite and with the better lighting saw that it definatly had one on each side.

airdale94 · 01-21-2009, 05:35 PM

Ah, glad to be of help. I've had this happen to me.

01-20-2009, 12:10 PM	#1
lts70 1970 Daily Driver Join Date: Jun 2007 Location: Glenns Ferry IDAHO Posts: 1,037	Hard Question This may be hard to understand, I know it will be hard to explain but I will give it a try. When I switched out my rear axels to 5lug from 6lug last night I had a dished washer fall out from between my carrier and spider gears in my posi differential. I had not pulled the retaining pin (The pin that holds the axles in a position so that the C clips that hold the axle in place do not fall out) out all of the way out so it came from the opposite side spider gear than the side with the bolt that holds this pin in place. I didn’t see it fall out but this is the only place I could find for it to go back in. My question is, there was not a dished washer on the other spider gear opposite, is that normal? __________________ It's not truly yours if you didn't build it yourself or if you don't do your own maintenance.

01-20-2009, 01:02 PM	#2
lowriden58 Registered User Join Date: Jan 2008 Location: Chesapeake Beach, MD Posts: 812	Re: Hard Question should be one on each spider gear __________________ 71 cheyenne lwb 300rwhp best 1/4 time so far 12.8 @103 http://i195.photobucket.com/albums/z...en58/001-2.jpg

01-20-2009, 01:46 PM	#3
larry may Senior Member Join Date: Jul 2005 Location: MISSOURI Posts: 3,256	Re: Hard Question x2 lowriden58 said, be correct, __________________ The biggest problem people have, is other people Thou shalt be cool and not hassle Be a site supporter. The heart of the wise inclines to the right, but the heart of the fool inclines to the left." Ecclesiastes 10:2

01-20-2009, 01:49 PM	#4
lts70 1970 Daily Driver Join Date: Jun 2007 Location: Glenns Ferry IDAHO Posts: 1,037	Re: Hard Question The two dished washers at the bottom of your picture are what I am talking about. Can you buy just the washer anywhere? If it has been running good with out it will it hurt it to keep running it with only one? Would they ever remove one for shimming reasons? Thanks a ton. __________________ It's not truly yours if you didn't build it yourself or if you don't do your own maintenance.

01-20-2009, 02:10 PM	#5
dwcsr Hollister Road Co. Join Date: Apr 2005 Location: Houston Posts: 6,134	Re: Hard Question The washers are available from GM dealers. If the washer has been missing for a long time you may want to get a spider kit and replace the set.

01-20-2009, 02:36 PM	#6
lts70 1970 Daily Driver Join Date: Jun 2007 Location: Glenns Ferry IDAHO Posts: 1,037	Re: Hard Question Well I will look for the other washer again but I don't think it could have gone anywhere but where the other one fell, right to the bottom. If I can not find it I will try just replacing the washer. It has had no problem or made any noise, all of the teeth look great. Thanks guys, i guess my question wasn't so hard after all. __________________ It's not truly yours if you didn't build it yourself or if you don't do your own maintenance. Last edited by lts70; 01-20-2009 at 02:37 PM.

01-20-2009, 04:22 PM	#7
lts70 1970 Daily Driver Join Date: Jun 2007 Location: Glenns Ferry IDAHO Posts: 1,037	Re: Hard Question I checked with the local GM dealer and they do not sell the washers separate. I checked LMC but they only offer the entire spider kit as well and it is not cheap at ether place. Crap! I sure hope it is in there still, though I highly doubt it because I looked for it real good last night. Why is it that you get a project alost done and half of the time you run into crap like this. So if it was never there in the first place and I have been driving the crap out of it for the last 10 years, and who nows how long it was gone before I got the truck, do I mess with a good thing? __________________ It's not truly yours if you didn't build it yourself or if you don't do your own maintenance.

01-20-2009, 04:33 PM	#8
LOW DOUGH I'M TRUCK CRAZY! Join Date: Oct 2006 Location: Sachse, TEXAS Posts: 1,737	Re: Hard Question Did you change your axle shafts from 6 lug to 5 lug? If so, are they stock shafts? (from a 71 or 72) Or are they aftermarket axle shafts? Because I thought you couldn't do that. I thought the 71 & 2's are wider than the 67 to 70 's

01-20-2009, 05:01 PM	#9
lts70 1970 Daily Driver Join Date: Jun 2007 Location: Glenns Ferry IDAHO Posts: 1,037	Re: Hard Question In 70 half way through the year they changed to the 71-72 length with thier rear axle. All you have to do is measure and see if you have the long or short one. I had the longer axle and could use the stock 71-72 axles. I got hardened axles for a 72 chevy truck from Summit racing for $95 a piece. If you have the shorter axle you have to get the conversion axles from CPP or ECE, ect. __________________ It's not truly yours if you didn't build it yourself or if you don't do your own maintenance.

01-20-2009, 05:26 PM	#10
airdale94 Registered User Join Date: Jan 2007 Location: Topeka,KS Posts: 778	Re: Hard Question It's probably just froze to the spider gear.

01-21-2009, 05:35 PM	#13
airdale94 Registered User Join Date: Jan 2007 Location: Topeka,KS Posts: 778	Re: Hard Question Ah, glad to be of help. I've had this happen to me.



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