rear end fluid change
Thread Starter
Instructor
Joined: Oct 1999
Posts: 182
Likes: 0
From: SW Oklahoma
rear end fluid change
What are you guys using to change the rear diff fluid with it still in the car? Any suggestions as to what or where to buy one? Replacing the trailing arm and figured since it is up in the air I might as well. I figured several have come up with a cheap and easy way that I could copy with out straining my brain! Rick
Le Mans Master
Joined: Sep 2000
Posts: 5,635
Likes: 4
From: Orlando Floriduh
I use a suction gun... Looks like a grease gun but has a plastic tube on the end and sucks when you pull the handle out... That's about the only way.. Put GM posi-oil back in with 2 bottles of the additive .. The additive is a MUST. Do NOT let a quick change place put their gear lube in or the clutches will chatter and grab.
Pro
Joined: Sep 2002
Posts: 690
Likes: 1
From: near Memphis TN
Originally Posted by RLS
What are you guys using to change the rear diff fluid with it still in the car? Any suggestions as to what or where to buy one? Replacing the trailing arm and figured since it is up in the air I might as well. I figured several have come up with a cheap and easy way that I could copy with out straining my brain! Rick
Has everyone forgotten the lost art of syponing gas, a real man would just suck the gas out to get the syphon started. You don't even need to get the car up in the air. Just a few pumps, put the output end of the tube in a bucket below the level of the diff, and grab a beer and come back in 5 minutes.
Team Owner
Joined: Jul 2001
Posts: 182,997
Likes: 88
From: Lakeland, FL
Cruise-In IV-V-VI-VII-VIII Veteran
St. Jude Donor '03, '06, '17
I usually use a El Cheapo style mech. pump that I bought at Pep Boys at one point.. It takes a while to get everything out.. but that's not a problem...
Pro
Joined: Apr 2000
Posts: 625
Likes: 0
From: The Villages FL
Rear Dif Drain
The Corvette Clinic developed and now markets through several vendors a complete kit for either C3 or C4 to install your own drain. The last time I saw them in a catalog they were priced around $40 - $50. The kit includes the drill bit, tap, drain plug, template for drilling the holes, instructions, etc. It is complete.
I'll be putting one in my rebuild when the time comes. Fresh fluid never hurts.
Spike
I'll be putting one in my rebuild when the time comes. Fresh fluid never hurts.
Spike
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Pro
Joined: Dec 2003
Posts: 642
Likes: 0
From: Dallas Texas
Has everyone forgotten the lost art of syponing gas, a real man would just suck the gas out to get the syphon started. You don't even need to get the car up in the air. Just a few pumps, put the output end of the tube in a bucket below the level of the diff, and grab a beer and come back in 5 minutes.
The trick is using a clear hose... and one long enough to see the gas flowing before it hits your mouth so you can get the hose over a bucket... heh....
