Re: 8 3/4 yokes
[Re: CSK]
#2081623
05/28/16 01:07 AM
05/28/16 01:07 AM
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Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
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I'd pack the back side covering the spring totally with heavy grease to keep the spring in place. I'd get a piece of pipe of the right dia & wide enough to cover a good portion of the seal face & use it to drive it in & get it started straight with a medium whack then continue to drive it home with as few strokes as possible as more hitting increases the chances of fubaring it. several good strokes is all it should take
live every 24 hour block of time like it's your last day on earth
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Re: 8 3/4 yokes
[Re: RapidRobert]
#2081799
05/28/16 12:43 PM
05/28/16 12:43 PM
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Joined: Jan 2003
Posts: 75,034
U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,034
U.S.S.A.
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I'd pack the back side covering the spring totally with heavy grease to keep the spring in place. I'd get a piece of pipe of the right dia & wide enough to cover a good portion of the seal face & use it to drive it in & get it started straight with a medium whack then continue to drive it home with as few strokes as possible as more hitting increases the chances of fubaring it. several good strokes is all it should take Does that procedure work for both seals ... he did ask if the seals were different ... not how to install it . 
running up my post count some more .
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Re: 8 3/4 yokes
[Re: RapidRobert]
#2081902
05/28/16 05:08 PM
05/28/16 05:08 PM
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Joined: May 2003
Posts: 1,751
Graham, WA
Polarapete
top fuel
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top fuel
Joined: May 2003
Posts: 1,751
Graham, WA
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I'd pack the back side covering the spring totally with heavy grease to keep the spring in place. I'd get a piece of pipe of the right dia & wide enough to cover a good portion of the seal face & use it to drive it in & get it started straight with a medium whack then continue to drive it home with as few strokes as possible as more hitting increases the chances of fubaring it. several good strokes is all it should take That is a good to know tip. As a matter of fact my club had a diff clinic at my shop on Thursday and we broke down, inspected, cleaned and reassembled a 741 single track case with 3.23 gears. It had a 10 spline yoke with straps and the seal area was still good so we just cleaned it, greased it and reused the seal because the diff owner had not bought a seal, he thought we were just going to clean off the dirt and drop it into the housing, install the axles and set the end play. But the 3rd member was stiff, the spider gears would not turn and we needed to look at the bearings to be sure they were still usable. Since it is going into a '71 Charger cruiser/show toy it will be fine. We did adjust the backlash with a dial indicator so it should be good for years to come. And now the owner knows more about diffs than he did when we started.
1986 Dodge Ramcharger 440 2wd, Bracket Racer Under Construction
1998 Ram 2500 QuadCab, new daily driver.
2008 Honda Element
2014 Carry-On 7x14 Cargo Trailer
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Re: 8 3/4 yokes
[Re: duster408]
#2081903
05/28/16 05:09 PM
05/28/16 05:09 PM
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Joined: Aug 2011
Posts: 2,864
Pattison Texas
CSK
master
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master
Joined: Aug 2011
Posts: 2,864
Pattison Texas
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actually the correct seal for the 742 has no spring & the lip seal is made of leather.
1968 Charger COLD A/C Hilborn EFI
512ci 9.7 compression, Stealth heads, 4.10 gear A518 ODtrans 4100lb,10.93 full street car trim
2020 T/A 392 Stock 11.79 @ 114.5
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Re: 8 3/4 yokes
[Re: CSK]
#2081908
05/28/16 05:17 PM
05/28/16 05:17 PM
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Joined: Dec 2003
Posts: 22,696
Bitopia
jcc
If you can't dazzle em with diamonds..
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If you can't dazzle em with diamonds..
Joined: Dec 2003
Posts: 22,696
Bitopia
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Somebody is paying attention   csk, you maybe , but my comment is meant for some one else.
Last edited by jcc; 05/28/16 05:19 PM.
Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.
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Re: 8 3/4 yokes
[Re: duster408]
#2081974
05/28/16 08:38 PM
05/28/16 08:38 PM
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Joined: Aug 2011
Posts: 2,864
Pattison Texas
CSK
master
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master
Joined: Aug 2011
Posts: 2,864
Pattison Texas
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as i said, they are different.
1968 Charger COLD A/C Hilborn EFI
512ci 9.7 compression, Stealth heads, 4.10 gear A518 ODtrans 4100lb,10.93 full street car trim
2020 T/A 392 Stock 11.79 @ 114.5
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Re: 8 3/4 yokes
[Re: CSK]
#2082051
05/28/16 10:51 PM
05/28/16 10:51 PM
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Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
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Oh OK I did not know that they were different (as far as spring/no spring). Noted!
live every 24 hour block of time like it's your last day on earth
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Re: 8 3/4 yokes
[Re: CSK]
#2082387
05/29/16 05:26 PM
05/29/16 05:26 PM
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Joined: Jan 2003
Posts: 25,836
Rio Linda, CA
John_Kunkel
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 25,836
Rio Linda, CA
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actually the correct seal for the 742 has no spring & the lip seal is made of leather. Correct as in "factory original" or correct as in "it fits/functions"? Most 742 seals nowadays are rubber and have a garter spring.
The INTERNET, the MISinformation superhighway
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Re: 8 3/4 yokes
[Re: duster408]
#2082460
05/29/16 07:54 PM
05/29/16 07:54 PM
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Joined: Aug 2011
Posts: 2,864
Pattison Texas
CSK
master
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master
Joined: Aug 2011
Posts: 2,864
Pattison Texas
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out of the last 5 I bought 4 were leather National brand & 1 rubber & spring from Cass @ DR diff.
1968 Charger COLD A/C Hilborn EFI
512ci 9.7 compression, Stealth heads, 4.10 gear A518 ODtrans 4100lb,10.93 full street car trim
2020 T/A 392 Stock 11.79 @ 114.5
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