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GM Drivetrain & Suspension Chassis | Transmission| Driveshaft | Gears/Rear End/Differential | Traction Aids
View Poll Results: how many of you regret your choice of drop?
4/6 and love it
36
38.71%
4/6 is too low
21
22.58%
2/4 not enough
36
38.71%
Voters: 93. You may not vote on this poll

Do you regret your drop?

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Old 05-15-2008, 04:33 PM
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i know alot of people will cnotch for a 2/4 just so they dont bottom out, but most 2/4s can make it by without a cnotch, just shorter bumpstops
Old 05-15-2008, 04:34 PM
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2/4 and lovin it.
Old 05-15-2008, 04:36 PM
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From what i can tell guys who drag race alot dont like the 4/6 because it limits travel in the rear, or atleast thats what ive read
Old 05-15-2008, 04:43 PM
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Originally Posted by 95 bright teal
i know alot of people will cnotch for a 2/4 just so they dont bottom out, but most 2/4s can make it by without a cnotch, just shorter bumpstops
Thanks I guess I better notch it then.

Originally Posted by 95 bright teal
From what i can tell guys who drag race alot dont like the 4/6 because it limits travel in the rear, or atleast thats what ive read
Yeah I bet but I have caltracs and the rear of the truck pics up under WOT.
Old 05-15-2008, 04:57 PM
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3/5 is perfect for me!
Old 05-15-2008, 05:00 PM
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DJM 4/6 here with no complaints. Recently have been thinking about going a little lower, doubt it will happen though. Only thing that scraps is the tranny crossmember. I hardly ever scrap mine though, just have to be careful. Like said, if you get a raised crossmember (have to raise your ypipe too), shouldn't really have any problems.

If I remember correctly, with 245/40/20s (27.7" tall), my tranny crossmember is about 2.5" off the ground, the frame is about 3.5", the valance a few inches higher. It's raining now or I would double check.

At minimum, I would do a 3/6
Old 05-15-2008, 05:26 PM
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3/5 here and i want to go lower like 4/7
Old 05-15-2008, 05:30 PM
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I like my 4/7, but since I fixed the chevy lean by trimming the pass. coil, it feels like a 5/7. I have my crossmember raised and my exhaust as well. I kept the frame braces by flipping them over, I only had to bang one with a hammer. Since I went to a 255/35 20 (27") from the 40 series (28"), my frame scrapes a lot more, but I don't mind; theres nothing to hit down there.

Sectioning the crossmember isn't that hard. Even if you don't have a welder, you can have the welding done by a shop. First decide how much to section the crossmember. I removed my crossmember then cut/ground the welds holding the cap to the crossmember. Then I cut the crossmember down about an inch and a half to inch and three quarter. Weld the cap back on the crossmember and your almost done. Install the sectioned crossmember and cut off any remaining brackets with a grinder or cut off wheel. I boxed my brackets under the frame for more strength, but its really not necessary.
Old 05-15-2008, 05:35 PM
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Originally Posted by BassBaller5
3/5 is perfect for me!
ME TOOO!!!!!!!!!!
Originally Posted by chevytruckguy
I like my 4/7, but since I fixed the chevy lean by trimming the pass. coil, it feels like a 5/7. I have my crossmember raised and my exhaust as well. I kept the frame braces by flipping them over, I only had to bang one with a hammer. Since I went to a 255/35 20 (27") from the 40 series (28"), my frame scrapes a lot more, but I don't mind; theres nothing to hit down there.

Sectioning the crossmember isn't that hard. Even if you don't have a welder, you can have the welding done by a shop. First decide how much to section the crossmember. I removed my crossmember then cut/ground the welds holding the cap to the crossmember. Then I cut the crossmember down about an inch and a half to inch and three quarter. Weld the cap back on the crossmember and your almost done. Install the sectioned crossmember and cut off any remaining brackets with a grinder or cut off wheel. I boxed my brackets under the frame for more strength, but its really not necessary.
do you have any pics of this?
Old 05-15-2008, 06:24 PM
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Originally Posted by Truckshop
do you have any pics of this?
Here are some pics from gmracer's build thread















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