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#301 |
Senior Member
![]() Join Date: Mar 2016
Location: Longview, TX
Posts: 552
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Re: 1978 Russet Metallic 4x4
The rebuilt TH350 was leaking from the shift shaft output seal. You can just see a little dab of red there.
![]() And here is the 20 dollar tool and seal to fix it. The tool works for tons of GM transmissions. ![]() It is so much fun learning to wrench on these things. There's so much joy doing it yourself, saving some time/money and knowing it's done right. |
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#302 |
Registered User
Join Date: Oct 2014
Location: Scottsdale, AZ
Posts: 428
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Re: 1978 Russet Metallic 4x4
Thanks for the update!
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#303 |
Senior Member
![]() Join Date: Mar 2016
Location: Longview, TX
Posts: 552
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Re: 1978 Russet Metallic 4x4
The rubber transmission cooler lines looked a bit rough and leaky.
![]() That's better. Finally found a use for those 3/8" FI hose clamps. ![]() |
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#304 |
Registered User
Join Date: Oct 2014
Location: Scottsdale, AZ
Posts: 428
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Re: 1978 Russet Metallic 4x4
Man someone went gorilla on those old hose clamps!! That hose is cut bad!
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#305 |
Senior Member
![]() Join Date: Mar 2016
Location: Longview, TX
Posts: 552
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Re: 1978 Russet Metallic 4x4
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#306 |
Junior Member
![]() Join Date: Aug 2017
Location: Waggaman, La
Posts: 59
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Re: 1978 Russet Metallic 4x4
Nice thread. I had a black 79 back in the mid 80 that I raced and wrenched on all them myself. Good times for sure.
I just picked up a 91 Jimmy that will be my daily driver, can't wait to get it. |
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#307 |
Senior Member
![]() Join Date: Mar 2016
Location: Longview, TX
Posts: 552
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Re: 1978 Russet Metallic 4x4
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#308 |
Senior Member
![]() Join Date: Mar 2016
Location: Longview, TX
Posts: 552
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Re: 1978 Russet Metallic 4x4
I installed a vintage Rancho Front Axle Truss I purchased from Jeff. Used some POR15 to give it a decent finish. The second picture shows how the attachment works. I upsized the u-bolt a tad for some more strength. With the truss installed, you can still remove the diff cover and pull axles. There's no scenario I can see that would require removal. There's a lot of tension in this thing.
![]() ![]() Last edited by buffydores; 02-17-2018 at 01:03 PM. |
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#309 |
Senior Member
![]() Join Date: Mar 2016
Location: Longview, TX
Posts: 552
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Re: 1978 Russet Metallic 4x4
I've been fixing little leaks as I find them. One curious leak that I've noticed on these old axles is gear oil leaks at the plug welds on the pumpkin. I've found three separate leaks this way. Weird.
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#310 |
Registered User
![]() Join Date: Mar 2009
Location: salt lake city, utah
Posts: 183
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Re: 1978 Russet Metallic 4x4
X2, very annoying. I decided next time I take it apart that problem is getting welded shut...at least I hope it's that easy.
__________________
'80 SRW C35 - 355/400/4:11/2.5-3/DD '77 Cheyenne K5 - vortec 355/NV4500/205/3:73/35's/DD '75 K20 - froze to death in eastern montana '88 K5 - long gone '73 K20 - high school truck http://67-72chevytrucks.com/vboard/s...d.php?t=614828 |
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#311 |
Registered User
Join Date: Mar 2018
Location: Austin
Posts: 1
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Re: 1978 Russet Metallic 4x4
Wow truck looks incredible. I have the exact same plaid on the seats on my 78 jimmy but the driver seat needs to be re upholstered. I saw you said they were new 40 yr old seats. Did you order the cloth somewhere and take them in? Want to get mine repaired too. Any info on how to go about that would be much appreciated.
Great job love to see these trucks look original. |
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#312 | |
Senior Member
![]() Join Date: Mar 2016
Location: Longview, TX
Posts: 552
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Re: 1978 Russet Metallic 4x4
Quote:
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#313 |
Senior Member
![]() Join Date: Mar 2016
Location: Longview, TX
Posts: 552
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Re: 1978 Russet Metallic 4x4
The original (I think) blower motor started to make an awful squeal on start-up, so I hunted down a NOS blower motor and installed. Problem solved.
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