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- - 387k tahoe gets new diff (https://67-72chevytrucks.com/vboard/showthread.php?t=819016)

truckdude239

03-01-2021 11:42 PM

387k tahoe gets new diff

1 Attachment(s)

Welp finally got tired of listening to the grinding ground of front diff on 387000 mile Tahoe. Picked up this beauty of a differential from local junkyard 22,000 documented miles on the truck will probably outlive the rest of the Tahoe looking forward to i stalling it ina few days

Palf70Step

03-02-2021 08:06 AM

Re: 387k tahoe gets new diff

:metal:

richards72chevy

03-02-2021 11:14 AM

Re: 387k tahoe gets new diff

Was all them miles racked up on the original motor?

truckdude239

03-02-2021 04:10 PM

Re: 387k tahoe gets new diff

Quote:

Originally Posted by richards72chevy (Post 8887536)

Was all them miles racked up on the original motor?

it got a engine and transmission at 369k not suren if trans was orginal but engine was orginal trans was out of and egnine was leaking alot of oil and running poor so i just swaped both for a 150k units

truckdude239

03-03-2021 12:19 PM

Re: 387k tahoe gets new diff

2 Attachment(s)

Its in old had had alot of metal shards on drain plug also found my 15 mm swivel scoket I lost 3 year ago when I did engine swap can't believe it rode there that long

hatzie

03-05-2021 12:02 PM

Re: 387k tahoe gets new diff

That's never good to find on the drain plugs.

biketopia

03-10-2021 02:49 PM

Re: 387k tahoe gets new diff

Is your hoe a full time auto unit? The front diffs live and die by routine service on the full auto units. You can draw out the 2x4 units a little on fluid changes though. I had co-worker I had to put one in an escalade that looked even worse at 105k because he never changed the fluid.

truckdude239

03-10-2021 02:52 PM

Re: 387k tahoe gets new diff

Quote:

Originally Posted by biketopia (Post 8892110)

Mine does have an auto 4x4 option but I leave it in 2x4 if I'm not in ice or snow I got the truck at 369k so I dont know how well it had been serviced in the past

biketopia

03-10-2021 02:54 PM

Re: 387k tahoe gets new diff

Quote:

Originally Posted by truckdude239 (Post 8892112)

Mine does have an auto 4x4 option but I leave it in 2x4 if I'm not in ice or snow I got the truck at 369k so I dont know how well it had been serviced in the past

You're good to go now, fresh fluid every 75-100k, if it lives that long and you're golden!

truckdude239

03-10-2021 02:56 PM

Re: 387k tahoe gets new diff

1 Attachment(s)

Yup I also filled it with synthetic amsoil 75w90 gearoil

hatzie

03-11-2021 11:35 AM

Re: 387k tahoe gets new diff

I use a laundry soap pump and clear hose on bottles of gear, manual transmission, and transfer case oil but Amsoil really has a good gimmick with the bags.

Warrens69GMC

03-11-2021 11:43 AM

Re: 387k tahoe gets new diff

Quote:

Originally Posted by hatzie (Post 8892481)

I use a laundry soap pump and clear hose on bottles of gear, manual transmission, and transfer case oil but Amsoil really has a good gimmick with the bags.

Valvoline has went to them as well

hatzie

03-11-2021 12:41 PM

Re: 387k tahoe gets new diff

Quote:

Originally Posted by Warrens69GMC (Post 8892492)

Valvoline has went to them as well

It's a really good idea. The packaging is likely a heckuva lot cheaper and it's a lot easier for the consumer to use. Winner all the way around
Even with the soap dispenser and hose it's still a pain in the neck to fill the diffs and transfer case on my 05.

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