Questions About Axle Flip - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Restrorob · 12-27-2007, 08:48 AM

Hey guy's,

I was surfin Ebay and ran across the below flip bracket kit, Starting bid is $40 and $11 shipping. States five inch drop and the same (stock) U bolts can be used.

For you who have installed flip kits, Are the two up-rights (arrow) the same height ?

I'm wondering about pinion angle/drive-line vibration ?

Reason I ask is I'm a welder/fabricator and have the stock in my shop to build these, I have already fabbed up a set of 3" drop shackles. Call me cheap, But even if I was lucky enough to get them for opening bid that's $51 that can be spent else-where.

Thanks for any input.....

Ivan D. · 12-27-2007, 12:16 PM

That's something I always wondered too, kinda-sorta same reasoning as Restrorob...

85gmcguy · 12-27-2007, 01:50 PM

If I'm remembering right, the legs are different lengths to correct the pinion angle (it only needs about 3 degrees) I'm not sure what that would equate to dimensionally. The location of the alignment hole is fairly critical, but you might could figure it out if you reversed the spring pack bolt (alignment pin) and did some careful measuring. If you could find someone with an uninstalled set they could supply dimensions for you. Just a thought...

Restrorob · 12-27-2007, 02:25 PM

Quote:

Originally Posted by 85gmcguy

If you could find someone with an uninstalled set they could supply dimensions for you.

That's what I was hoping for with this thread.

Mr79C10 · 12-28-2007, 01:07 AM

Quote:

Originally Posted by 85gmcguy

If I'm remembering right, the legs are different lengths to correct the pinion angle (it only needs about 3 degrees) ...

Thats right, its to set the pinion angle, And the hole goes forward on the spring.
And it ill look just like the set up in the pic.
Happy Holidays.

Restrorob · 12-28-2007, 01:19 PM

I asked the seller about the length of these brackets and this is the reply I got;

"They are the same height and there will be no vibration".

Does this sound feasible to you guys ?

knightlife · 12-28-2007, 07:25 PM

it is feesable...

kevinr1970 · 12-30-2007, 09:33 PM

I just bought a set of 3" springs and a flip kit from a guy locally that have never been mounted. He said he bought them from AME but I can't find a website for that name?

Anywhoo, both legs measure 3-5/8" (+/- 1/16").

They look EXACTLY like the ones you posted in the original post. The Ebay ad wasn't from the Seattle area was it...

Malo83 · 12-30-2007, 10:47 PM

I wouldn't worry about it, i've benn running a Flip Kit on my 83 for the last 24 yrs without any problems, the key is to make sure that the hole is mounted forward as was mentioned earlier, this will pull the yoke back out of the tranny as the rear is lowered.

Restrorob · 12-31-2007, 02:15 AM

Quote:

Originally Posted by kevinr1970

The Ebay ad wasn't from the Seattle area was it...

Thanks Kevin and other's for the replies, Naaa it was from Central ,
Massachusetts.

slugish · 12-31-2007, 06:28 PM

Quote:

Originally Posted by kevinr1970

I just bought a set of 3" springs and a flip kit from a guy locally that have never been mounted. He said he bought them from AME but I can't find a website for that name?

Anywhoo, both legs measure 3-5/8" (+/- 1/16").

They look EXACTLY like the ones you posted in the original post. The Ebay ad wasn't from the Seattle area was it...

Kevin ,

its AIM , NOT AME / LOT OF GUYS ON THE FORUM HAVE HAD BAD EXPERIENCES WITH THIS COMPANY . Ihave aim industries drop spindles & have had no problems(c hassistech). ,but a lot have said I am lucky.

BaddBusa2005 · 12-31-2007, 06:50 PM

the pinion angle is determined by the welded leaf spring pads.

kevinr1970 · 12-31-2007, 08:40 PM

I guess it probably doesn't matter as the springs look to be ground force?
Does anyone have any idea what the dimension of these springs should be? They are supposed to be 3" drop springs.
I measure just over 10" in length and about 5-1/2" in diameter.

Quote:

Originally Posted by slugish

Kevin ,

its AIM , NOT AME / LOT OF GUYS ON THE FORUM HAVE HAD BAD EXPERIENCES WITH THIS COMPANY. I have aim industries drop spindles & have had no problems(chassistech). ,but a lot have said I am lucky.

7T2 · 01-01-2008, 04:14 AM

I don't know if this would be a big deal or not, but it seems to me like the brackets pictured above would be putting a lot more stress on the axle pad weld? Maybe not, but it seems like the axle trying to rotate would now be putting upward force on the weld, as opposed to downward force.

bad6772 · 01-01-2008, 04:32 AM

you are correct 7t2 lol i learned this the hard way also....was coming to a on ramp in my 72 right after i did my flip ohh 7-8 years ago...anyways i got on her pretty hard,and with 4,56 gears.and a 400 horse 350 you know it gets outa the whole fast....anyways the right side ear bent up and took me for a wild ride....was not fun.....anyways to solve this i baught two new ears(or spring pearches) and replaced those and on top i added a piece of 1/2 inch plate steel....has been doing great now with no problems i even ran a 4.88 gear and all was fine....i would suggest people to do this mod also....it could save someone from a bad bad wreck...........................just my 0.2

12-27-2007, 08:48 AM	#1
Restrorob The One And Only !!! Join Date: Jan 2007 Location: Hole in the woods Florida Posts: 4,567	Questions About Axle Flip Hey guy's, I was surfin Ebay and ran across the below flip bracket kit, Starting bid is $40 and $11 shipping. States five inch drop and the same (stock) U bolts can be used. For you who have installed flip kits, Are the two up-rights (arrow) the same height ? I'm wondering about pinion angle/drive-line vibration ? Reason I ask is I'm a welder/fabricator and have the stock in my shop to build these, I have already fabbed up a set of 3" drop shackles. Call me cheap, But even if I was lucky enough to get them for opening bid that's $51 that can be spent else-where. Thanks for any input..... __________________ 93 Jeep XJ 88 Buick La Sabra Toys; 88 TA-GTA in the works.... 97 GMC Ext. Cab 502 Crate 5 Spd......Sucks Gas But Haulz Azz ! The primary function of an Engineer is to make it difficult for the Fabricator and impossible for the Mechanic. *"Why go out preserved when you can go out beat up, worn out, sliding in sideways screaming, Holy Sh!t What A Ride" !!!*

12-27-2007, 12:16 PM	#2
Ivan D. glamoros piece o' lowlife Join Date: Mar 2007 Location: Redford, MI Posts: 1,164	Re: Questions About Axle Flip That's something I always wondered too, kinda-sorta same reasoning as Restrorob... __________________ The more I drink, the more I drink, the more I drink... diesel, reg cab, long bed, 4 across the rear, single stack, wooden stakes, and lotsa lights - the Hay Express

12-27-2007, 01:50 PM	#3
85gmcguy Plays with trucks Join Date: Sep 2003 Location: Asheville, NC Posts: 433	Re: Questions About Axle Flip If I'm remembering right, the legs are different lengths to correct the pinion angle (it only needs about 3 degrees) I'm not sure what that would equate to dimensionally. The location of the alignment hole is fairly critical, but you might could figure it out if you reversed the spring pack bolt (alignment pin) and did some careful measuring. If you could find someone with an uninstalled set they could supply dimensions for you. Just a thought... __________________ Gary My Dad's Old Truck 1985 Last edited by 85gmcguy; 12-27-2007 at 02:00 PM. Reason: clarity

12-28-2007, 01:19 PM	#6
Restrorob The One And Only !!! Join Date: Jan 2007 Location: Hole in the woods Florida Posts: 4,567	Re: Questions About Axle Flip I asked the seller about the length of these brackets and this is the reply I got; "They are the same height and there will be no vibration". Does this sound feasible to you guys ? __________________ 93 Jeep XJ 88 Buick La Sabra Toys; 88 TA-GTA in the works.... 97 GMC Ext. Cab 502 Crate 5 Spd......Sucks Gas But Haulz Azz ! The primary function of an Engineer is to make it difficult for the Fabricator and impossible for the Mechanic. *"Why go out preserved when you can go out beat up, worn out, sliding in sideways screaming, Holy Sh!t What A Ride" !!!*

12-28-2007, 07:25 PM	#7
knightlife Dark Heart Motorsports Join Date: Apr 2007 Location: 29404 DKFX Posts: 683	Re: Questions About Axle Flip it is feesable... __________________ How Deep Can YOU Bleed..? 1985 Chevy Blazer K5- 6.2 N/A, 400 turbo trans CUCV, 12v converted... a new chapter 2005 GMC Sierra Crew Cab 6.0 powwwaa!!! custom jumpseat install w/ captain seats, Hypertech tuner, MSD Blaster Coils, CB and twin antenna's, all electric interior, touch screen in dash. custom center console, with jump seat replacing original console. 1500 HD!

12-30-2007, 09:33 PM	#8
kevinr1970 Senior Member Join Date: Aug 2004 Location: Everett, WA Posts: 2,316	Re: Questions About Axle Flip I just bought a set of 3" springs and a flip kit from a guy locally that have never been mounted. He said he bought them from AME but I can't find a website for that name? Anywhoo, both legs measure 3-5/8" (+/- 1/16"). They look EXACTLY like the ones you posted in the original post. The Ebay ad wasn't from the Seattle area was it... __________________ 2009 Honda Fit CfC (bsf 44.9 mpg) 2000 Tahoe Limited 1991 GMC CrewCab Dually 2wd, will end up swb, not dually and replace CCswb below 1991 GMC CrewCab Dually 4x4, just going to fix things up for now 1982/1989 K5/GMC Jimmy 2wd 1987 GMC 1/2 ton swb 2wd Crew (sold)

12-30-2007, 10:47 PM	#9
Malo83 Cruzzzn' Vet Join Date: Jan 2005 Location: Porterville,Ca. Posts: 1,918	Re: Questions About Axle Flip I wouldn't worry about it, i've benn running a Flip Kit on my 83 for the last 24 yrs without any problems, the key is to make sure that the hole is mounted forward as was mentioned earlier, this will pull the yoke back out of the tranny as the rear is lowered.

12-31-2007, 06:50 PM	#12
BaddBusa2005 Registered User Join Date: Feb 2006 Location: Cleveland, TN Posts: 440	Re: Questions About Axle Flip the pinion angle is determined by the welded leaf spring pads. __________________ 1981 Custom Deeluxe SWB 5.3/4L60e 3.73 and Auburn. Mustang Dyno 265hp/258tq

01-01-2008, 04:14 AM	#14
7T2 Active Member Join Date: Dec 2004 Location: Marysville, OH Posts: 667	Re: Questions About Axle Flip I don't know if this would be a big deal or not, but it seems to me like the brackets pictured above would be putting a lot more stress on the axle pad weld? Maybe not, but it seems like the axle trying to rotate would now be putting upward force on the weld, as opposed to downward force. __________________ 1957 GMC Ambulance 1962 Belair Wagon 1963 C80 Truck Cab FOR SALE 1969 Chevy C10 Short Bed 1972 Chevy C10 Long Bed SOLD 1996 C3500 Dually SOLD

01-01-2008, 04:32 AM	#15
bad6772 Official Site Guitar Shredder Join Date: May 2006 Location: Oz Posts: 3,955	Re: Questions About Axle Flip you are correct 7t2 lol i learned this the hard way also....was coming to a on ramp in my 72 right after i did my flip ohh 7-8 years ago...anyways i got on her pretty hard,and with 4,56 gears.and a 400 horse 350 you know it gets outa the whole fast....anyways the right side ear bent up and took me for a wild ride....was not fun.....anyways to solve this i baught two new ears(or spring pearches) and replaced those and on top i added a piece of 1/2 inch plate steel....has been doing great now with no problems i even ran a 4.88 gear and all was fine....i would suggest people to do this mod also....it could save someone from a bad bad wreck...........................just my 0.2



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