Really stupid question...
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Supreme Member
Joined: Sep 1999
Posts: 3,043
Likes: 823
From: Colorado USA
Car: '83 Firebird (T/A Clone)
Engine: 350 with L-69 components
Transmission: 700R-4, 2000 RPM stall converter
Axle/Gears: 10-bolt/3.73 ..
Really stupid question...
Gonna expose my ignorance here. 
I pulled the cover off the rearend and drained the old gear-oil. My question is; since there's no fill plug on the cover, HOW do I put the new fluid in?? I noticed there's a vent on top, but it has a cap on it and I have no idea if it's removable or not.
By the way; all this time I thought I had 3.42s (that's what it was supposed to have because I pulled it from a '84 Z-28 H.O. with auto trans), after counting the teeth it turns out that they're 3.73s. It's only a "one-legger" though.
I'll get a posi for it later...
I pulled the cover off the rearend and drained the old gear-oil. My question is; since there's no fill plug on the cover, HOW do I put the new fluid in?? I noticed there's a vent on top, but it has a cap on it and I have no idea if it's removable or not. By the way; all this time I thought I had 3.42s (that's what it was supposed to have because I pulled it from a '84 Z-28 H.O. with auto trans), after counting the teeth it turns out that they're 3.73s. It's only a "one-legger" though.
I'll get a posi for it later... 
Joined: Mar 2000
Posts: 43,187
Likes: 45
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
On the front of the pumpkin, passenger side, there's a pipe plug that uses a 3/8" drive extention.
Thread Starter
Supreme Member
Joined: Sep 1999
Posts: 3,043
Likes: 823
From: Colorado USA
Car: '83 Firebird (T/A Clone)
Engine: 350 with L-69 components
Transmission: 700R-4, 2000 RPM stall converter
Axle/Gears: 10-bolt/3.73 ..
Thanks man. I feel like an idiot now...
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