Cracked D44 diff case
Thread Starter
Pro
Joined: Dec 1999
Posts: 673
Likes: 0
From: Venetia,Pa,USA
Cracked D44 diff case
I thought I was almost done repairing my C4 that I wrecked at Mid Ohio in Aug. I went to loosen the rear bolts that hold the diff to the "C" beam and I found that the case was cracked where the bolts go thru. Can the case be welded or is it just as cheap to get a new/used diff? My diff is a 4:09 and I would rather have a 3:45. Any idea what I'm talking about in $$$$$$$$$???
Burning Brakes
Joined: Sep 2005
Posts: 1,058
Likes: 2
From: Deep inside GM
I thought I was almost done repairing my C4 that I wrecked at Mid Ohio in Aug. I went to loosen the rear bolts that hold the diff to the "C" beam and I found that the case was cracked where the bolts go thru. Can the case be welded or is it just as cheap to get a new/used diff? My diff is a 4:09 and I would rather have a 3:45. Any idea what I'm talking about in $$$$$$$$$???
Yes it can be welded. Weld it solid, then use the batwing as your template for drilling out the hole.
Team Owner
Joined: Sep 2003
Posts: 25,365
Likes: 2,731
I should add that if it's into the front pinion bearing area of the housing it's likely better to replace and move along. You'll likely have problems with the seal and also keeping the pinion cup from spinning.
I'm guessing his damage was right rear and the wheel got hit in the collision or it struck a curb or something.
Last edited by WVZR-1; Sep 29, 2008 at 03:06 PM.
