Impala wagon rear end

dragginwagon · 09-13-2010, 08:03 AM

have been told that no matter what I do 10 bolt rear end will not stand up to launching 4000lb wagon...any thoughts ??

Jim Cimarolli · 09-13-2010, 09:37 AM

8.2 or 8.5 10 bolt?
Engine size?
Stick or auto?

dragginwagon · 09-13-2010, 10:12 AM

327 275 hp 4 speed is the drivetrain I plan to use...other wagons I have seen are using extremely low gears in rear end... 6:14's??... thanx

dragginwagon · 09-13-2010, 10:16 AM

forgot to add...8.2" I believe as it is original to car...67 Impala

Alan Roehrich · 09-13-2010, 11:09 AM

The problem with that much gear in a small 10 bolt is the pinion is going to be about the size of your thumb.

dragginwagon · 09-13-2010, 12:10 PM

Is a GM 12 bolt my only other option if I want to run stock? my 10 bolt measures 56 1/2 " backing plate to backing plate...

Alan Roehrich · 09-13-2010, 12:24 PM

If you can get the right gear, you might be able to run a later 10 bolt, maybe something from a full size wagon or sedan from the eighties, some of them had the big 10 bolt.

You might be able to run something beside the 12 bolt. There might be a small savings in weight, drag, and initial cost. However, gear life could be a serious problem, and buying gears, installation kits, and paying for labor could get expensive fast. The slower cars are successful by being stone reliable and consistent. Remove some reliability and the slow cars are at more of a disadvantage.

09-13-2010, 08:03 AM	#1
dragginwagon Junior Member Join Date: Aug 2010 Posts: 30 Likes: 0 Liked 0 Times in 0 Posts	Impala wagon rear end have been told that no matter what I do 10 bolt rear end will not stand up to launching 4000lb wagon...any thoughts ??

09-13-2010, 09:37 AM	#2
Jim Cimarolli Senior Member Join Date: Mar 2002 Location: Sulphur Springs Texas Posts: 743 Likes: 146 Liked 166 Times in 46 Posts	Re: Impala wagon rear end 8.2 or 8.5 10 bolt? Engine size? Stick or auto?

09-13-2010, 10:12 AM	#3
dragginwagon Junior Member Join Date: Aug 2010 Posts: 30 Likes: 0 Liked 0 Times in 0 Posts	Re: Impala wagon rear end 327 275 hp 4 speed is the drivetrain I plan to use...other wagons I have seen are using extremely low gears in rear end... 6:14's??... thanx

09-13-2010, 10:16 AM	#4
dragginwagon Junior Member Join Date: Aug 2010 Posts: 30 Likes: 0 Liked 0 Times in 0 Posts	Re: Impala wagon rear end forgot to add...8.2" I believe as it is original to car...67 Impala

09-13-2010, 11:09 AM	#5
Alan Roehrich Veteran Member Join Date: May 2006 Location: Murfreesboro TN Posts: 5,105 Likes: 1,564 Liked 1,789 Times in 408 Posts	Re: Impala wagon rear end The problem with that much gear in a small 10 bolt is the pinion is going to be about the size of your thumb. __________________ Alan Roehrich 212A G/S

09-13-2010, 12:10 PM	#6
dragginwagon Junior Member Join Date: Aug 2010 Posts: 30 Likes: 0 Liked 0 Times in 0 Posts	Re: Impala wagon rear end Is a GM 12 bolt my only other option if I want to run stock? my 10 bolt measures 56 1/2 " backing plate to backing plate...

09-13-2010, 12:24 PM	#7
Alan Roehrich Veteran Member Join Date: May 2006 Location: Murfreesboro TN Posts: 5,105 Likes: 1,564 Liked 1,789 Times in 408 Posts	Re: Impala wagon rear end If you can get the right gear, you might be able to run a later 10 bolt, maybe something from a full size wagon or sedan from the eighties, some of them had the big 10 bolt. You might be able to run something beside the 12 bolt. There might be a small savings in weight, drag, and initial cost. However, gear life could be a serious problem, and buying gears, installation kits, and paying for labor could get expensive fast. The slower cars are successful by being stone reliable and consistent. Remove some reliability and the slow cars are at more of a disadvantage. __________________ Alan Roehrich 212A G/S

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