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: 3/4 ton axels

biggraypig
04-20-2006, 06:11 PM
What ratios did 80's era 3/4 ton axels come in?
somebourbon
04-20-2006, 08:40 PM
What ratios did 80's era 3/4 ton axels come in?

Most likely 3.73. I am no expert on detailed chevy history tho.
avainaffairs
04-21-2006, 03:31 AM
4.11's also

Maybe 4.56's in tow truck and other HD apps but I am not sure on that
Black Dog
04-21-2006, 03:57 AM
The majority are 4.10, some are 4.56, and you will find a few 3.73s.
somebourbon
04-21-2006, 10:18 AM
The CUCV military chevy's had 4.56s
cbbr
04-21-2006, 10:20 AM
They made 3/4 ton CUCV's?
somebourbon
04-21-2006, 10:24 AM
They made 3/4 ton CUCV's?

I don't know about that. I was just responding to black dog's comment.
jesster
04-21-2006, 11:25 AM
3.42's as well...
biggraypig
04-21-2006, 05:09 PM
There is a pair in a suburban, and a pair in a truck that I can get my hands on. Is there any way of telling without opening the diffs up? There are no stickers on these vehicles.
cuc-v
04-21-2006, 05:39 PM
They made 3/4 ton CUCV's?

all the cuc-v models were 1 1/4 ton except the m1009 which is the blazer body style and that was 3/4 ton!
cbbr
04-21-2006, 06:25 PM
Thought so. Thanks though.
somebourbon
04-21-2006, 07:50 PM
There is a pair in a suburban, and a pair in a truck that I can get my hands on. Is there any way of telling without opening the diffs up? There are no stickers on these vehicles.

Jack the rear axle up. Mark the driveline and the tire. Slowly turn the tire. As you do, count each driveline rotation until you've turned the tire only 1 complete turn. So: about 4.5 DL rotations = 1 tire. So, 4:56:1, about 3 3/4 would be 3.73:1 etc. 4.10 and 4.11 are esentially the same. You could also look for a tab on one of the diff cover bolts, but sometimes that may be hard to read.