Please take a look at my driveshaft...

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Please take a look at my driveshaft...

Postby Lasticaca » Mon Jan 11, 2021 4:59 am

Aloha from Hawaii y’all!

I’m slowly trying to make my 89 LS leakfree, a lofty goal I know. As I was degreasing the undercarriage, I noticed this broken/damaged spot on the driveshaft. Would any of you knowledgeable folks know what this part is called, and where it may fall on the priority of fixing? Big mahalos, sending warm sunshine vibes your way!

Keith

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Re: Please take a look at my driveshaft...

Postby Eric B » Mon Jan 11, 2021 12:18 pm

Hello Lasticaca , that looks like the slip joint , it allows the driveshaft length to change under load and suspension cycling. Front or rear ? The front driveshaft ( at least on my 93 ) does not move around too much , as the transfer case and differential are rigidly mounted. the slip joint allows you to collapse the driveshaft for service and disassembly. The rear drive shaft moves around a bit more. You can repair it a few way , in all scenarios , the driveshaft needs to be removed. So.... 1. take it to someone who is a skilled welder , clean it, mend it and file it smooth. 2. buy a new one. 3. find a used one. 4. a driveline shop can easily do this service. Which island are you on ? Cheers , Eric
1993 Trooper S 4x4, MUA5 spd, 2 meter Yaesu, iPad nav and topo, dual shocks , Old Man Emu, front Lokka, G80 , Falken 32" x 11.5 on 15's , 6 gal aux fuel , 9.5 gal H20 storage.

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Re: Please take a look at my driveshaft...

Postby Eric B » Mon Jan 11, 2021 12:27 pm

If you do separate the drive shaft pieces, put them back together exactly as they came apart ...matching the splines and the yoke ends. if they are not aligned properly , the yokes will be out of phase and vibrate tremendously , as the u-joints articulate . Super not fun. there is a youtube video that explains the driveshaft and u-joint dynamics
1993 Trooper S 4x4, MUA5 spd, 2 meter Yaesu, iPad nav and topo, dual shocks , Old Man Emu, front Lokka, G80 , Falken 32" x 11.5 on 15's , 6 gal aux fuel , 9.5 gal H20 storage.
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Re: Please take a look at my driveshaft...

Postby Eric B » Mon Jan 11, 2021 1:24 pm

1993 Trooper S 4x4, MUA5 spd, 2 meter Yaesu, iPad nav and topo, dual shocks , Old Man Emu, front Lokka, G80 , Falken 32" x 11.5 on 15's , 6 gal aux fuel , 9.5 gal H20 storage.
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Re: Please take a look at my driveshaft...

Postby mudoilngears » Mon Jan 11, 2021 2:48 pm

Isn't that a rubber dust boot?
Image
1998 Rodeo LS 4x4 4JB1-TC Diesel Swap, Moog CC247 coils, more mods to come!

SOLD- :( 1990 Isuzu Amigo 4X4 4ZE1 engine. Front Aussie Locker, HD Sway Away T-bars,Smittybilt XRC8 winch.
Build in progress...

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Re: Please take a look at my driveshaft...

Postby DSUZU » Mon Jan 11, 2021 9:55 pm

On blowing the picture up, it appears to be what's left of the rubber boot. Dennis
1991 LS Trooper 2.8 V6 5 speed conversion (Sold)
1989 LS Spacecab 2.6 5 speed 4x4 manual hubs, Rodeo torsion bars, extended shackles, 2" lift, K&N air filter (drop in), dump bed conversion, burgundy interior change, warn brush bar. Engine is bored .020 oversize and upgraded to 1994 pistons, head and EFI system.
Previously owned: 1987 Trooper II LS, 1989 Trooper (parts only), 1994 Trooper 3.2 Auto, 1997 Rodeo 2.6 5 speed, 1993 shortbed pickup 2.3 (project - sold) 1992 Rodeo 4x4 LS (parts car, devoured by Spacecab needs) plus some 70 plus other non Isuzu vehicles over the years. 1994 Amigo devoured to provide head and EFI system.
Heavily damaged by engine compartment fire while driving on March 24th 2018, condemned by insurance company and taken on March 30th 2018 :cry:.

https://forum.planetisuzoo.com/viewtopic.php?f=15&t=64060
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Re: Please take a look at my driveshaft...

Postby Lasticaca » Tue Jan 12, 2021 8:35 pm

Eric B, thanks for taking the time to reply! It looks like the consensus is the broken part is the remains of the rubber dust boot. I'm over here on Oahu btw. You ever been to Hawaii?

Mudoilngears and DSUZU, thanks for helping me out with this! First gen Troopers are super rare down here. And being 2500 miles from the west coast makes it crazy expensive to get any parts. I'll keep at it though!

This forum is a major benefit, thanks again for your help everyone!
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Re: Please take a look at my driveshaft...

Postby DSUZU » Tue Jan 12, 2021 10:19 pm

I was on Oahu, Big Island, and Kawai (with a brief stopover on Maui) back in '82. Of course, Troopers were still on the drawing board back then. What DID impress me was the number of OLD cars I saw sitting around (30s vintage). It included an abandoned car in the woods off the runway on Maui, and seeing a 32 Woody sitting in someone's yard. There was also a sighting of the actual (original) Magnum Ferrari. Dennis
1991 LS Trooper 2.8 V6 5 speed conversion (Sold)
1989 LS Spacecab 2.6 5 speed 4x4 manual hubs, Rodeo torsion bars, extended shackles, 2" lift, K&N air filter (drop in), dump bed conversion, burgundy interior change, warn brush bar. Engine is bored .020 oversize and upgraded to 1994 pistons, head and EFI system.
Previously owned: 1987 Trooper II LS, 1989 Trooper (parts only), 1994 Trooper 3.2 Auto, 1997 Rodeo 2.6 5 speed, 1993 shortbed pickup 2.3 (project - sold) 1992 Rodeo 4x4 LS (parts car, devoured by Spacecab needs) plus some 70 plus other non Isuzu vehicles over the years. 1994 Amigo devoured to provide head and EFI system.
Heavily damaged by engine compartment fire while driving on March 24th 2018, condemned by insurance company and taken on March 30th 2018 :cry:.

https://forum.planetisuzoo.com/viewtopic.php?f=15&t=64060
City of St Petersburg (Fl) Fleet Maintenance 8/23/83 - 12/4/2018 (Retired). Started new job 6/4/2019. Was retired, now just tired.

If your wife has 5.00, and you have 20.00, your wife has...25.00

"Water is one of the greatest essentials of life. Without water, you can't make coffee."

Forget the "free education". Why waste time. Just give me the "FREE INCOME".
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Re: Please take a look at my driveshaft...

Postby Eric B » Wed Jan 13, 2021 12:26 pm

Lasticaca, yes , we have been to the islands many times over the years. Our last visit , Pele' was doing some remodeling at the Leliani Esates. Incredible to witness, We dive ....some of my favorites are the Ahihi-Kinau Natural Reserve area on Maui, Cook's Monument on Hawaii, and the Molokini Shoal. Spent some time hiking Haleakala too. We visited Oahu some time ago.

Mine is different , but that probably is a rubber part, and not expensive. it helps keep the grease in
1993 Trooper S 4x4, MUA5 spd, 2 meter Yaesu, iPad nav and topo, dual shocks , Old Man Emu, front Lokka, G80 , Falken 32" x 11.5 on 15's , 6 gal aux fuel , 9.5 gal H20 storage.
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Re: Please take a look at my driveshaft...

Postby TroopinSC » Wed Jan 13, 2021 4:18 pm

Just posted about a very similar issue with mine. Recently replaced the u-joints and rear diff seal. Could this be a similar or the same issue? Thanks as well over this way.
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Re: Please take a look at my driveshaft...

Postby TroopinSC » Wed Jan 13, 2021 5:03 pm

Here are some pics as well. Can’t see anything visibly wrong. Just a shutter at speed and grinding and knocking in reverse.
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