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3.73s in a cucv

84CUCV

84CUCV

3/4 ton status
Joined
Jul 1, 2002
Posts
7,150
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Location
NJ for now
I was wondering how 3.73s would be compared to the 4.56. I going to swap the 1 ton for the 3/4 ton rears and sell the truck. 3/4 ton rears came from a p/u so they should bolt right up right??? What about the drive shafts? thanks mike
 
It seems to me 3.73 would work well to lower the rpm's to a good range for the 6.2. The 3/4 ton's should bolt in. The only difference is the Ubolts for the 60 will not work on the 44/10 bolt. Ujoints should be the same and driveshaft length close.
 
What tire size are you running? /forums/images/graemlins/thinking.gif
 
For now stock tiers. Down the road 36. I got them for 200 bucks complete so i figure i can go wrong.

mike
 
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the 3/4 ton rear will NOT bolt in , the spring pads are farther apart.

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Oops! Yup, forgot about that problem. /forums/images/graemlins/doah.gif
 
yikes, stock tires, 3.73's no OD. That will move, but it will be some high RPMS. around 3000ish I would guess.
 
Anyo f you have calipers for a 3/4 ton ten bolt? Didnt even see they were not there till i got them home. thanks
 
1/2 ton calipers and 3/4 ton calipers are the same thing...so yes.

Rene
 
Ive got 3.73's in my K5, with 33's. She moves right along. Wont win any drag races, but thats not my thing.
 
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I thoght they would be stronger calipers or something like that. thanks

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They are not stronger by them selves.
The fact that the rotor is bigger, and the mount for the caliper is further from the center gives it more leverage, that is how it's stronger.
As long as you have everything else from a 3/4ton axle the calipers are interchangeable.
 
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