#958190 - 04/03/11 01:53 AM
Re: How to Lower Your 1972-1993 Dodge Pickup
[Re: superbyrd]
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master
Registered: 08/19/06
Posts: 8064
Loc: Iowa
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I know but others might not. Thats why it would be a good how to write up.
Also how to find the correct angle when doing it
_________________________
"MOPAR" its a lifestyle" 
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#958191 - 04/03/11 07:36 AM
Re: How to Lower Your 1972-1993 Dodge Pickup
[Re: 76dodgeboy]
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I Live Here
Registered: 05/29/03
Posts: 15186
Loc: Florida
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pinion angle  yea,now thats a write up I need  with mine sitting on the ground with the mono leafs with the ssm bars pre-loaded it looks like my pinion is pointing up to much IMO but I guess it will need to be sorted out then adjusted it sure lifts the back up when you launch it though  where do you get the shims for pinion adjustments?
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#958192 - 04/03/11 07:56 AM
Re: How to Lower Your 1972-1993 Dodge Pickup
[Re: scratchnfotraction]
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super stock
Registered: 09/13/10
Posts: 718
Loc: Nunnelly, TN
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What is the best way to set pinion angle?
I only started taking things apart yesterday. They didn't have my U-bolts in stock at NAPA, so I had to order some.
_________________________
Kevin I
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#958193 - 04/03/11 11:24 AM
Re: How to Lower Your 1972-1993 Dodge Pickup
[Re: Kevin I]
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master
Registered: 10/20/05
Posts: 5995
Loc: Back home in PA
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I level the truck with stands using shims to get it perfect & measure pinion angle with an angle finder before I flip or move spring hangers. I use the same measurement when I reset my angle. On drag vehicles I set the pinion 2-3 degrees lower to deter spring wrap up. Shims can be bought from various places who sell custom suspension parts Comp Engineering etc
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#958194 - 04/07/11 12:02 AM
Re: How to Lower Your 1972-1993 Dodge Pickup
[Re: BulletBob]
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super stock
Registered: 01/08/05
Posts: 1011
Loc: Sunnyvale, CA.
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#958195 - 04/07/11 05:38 AM
Re: How to Lower Your 1972-1993 Dodge Pickup
[Re: 3XCHARM]
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enthusiast
Registered: 03/19/08
Posts: 388
Loc: kentucky
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the way i do the rear is, with the trucks frame (about 2-3 inches in front of front spring hanger) sitting on jack stands, i put the axle on the new spring perches,mount the new u-bolts,measure everything,2-3-4 times, place a floor jack under the center of the axle,lightly tighten the nuts on the u-bolts, and jack up the rear of the truck to place the weight of the truck on the axle/springs. now i place a magnetic angle finder on the yolk. set my pinion angle (tapping the nose of the diff with a hammer-up or down as needed). when i have it where i want it,i tighten down the u-bolt nuts, then reach in with mig gun and weld the new spring perches on each side. take her off the stands and shes done.
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#958196 - 04/08/11 01:04 AM
Re: How to Lower Your 1972-1993 Dodge Pickup
[Re: superbyrd]
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master
Registered: 10/20/05
Posts: 5995
Loc: Back home in PA
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I have also used a flip bracket for a chebbie & got a good angle that way.
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#958197 - 04/08/11 08:35 AM
Re: How to Lower Your 1972-1993 Dodge Pickup
[Re: BulletBob]
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member
Registered: 11/03/10
Posts: 83
Loc: Ontario Canada
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Quote:
I have also used a flip bracket for a chebbie & got a good angle that way.
This may sound like a stupid question....... where do you use a flip bracket and where do you get them
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#958198 - 04/11/11 12:06 AM
Re: How to Lower Your 1972-1993 Dodge Pickup
[Re: Eck]
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master
Registered: 10/20/05
Posts: 5995
Loc: Back home in PA
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What I call a flip bracket is the U-shaped bracket that comes in a flip kit for a Chebbie. It goes under the perches & locates the rearend to the springs by fitting up inside the recess on the bottom of the original perch. It takes a little grinding here & there but will work if you don't have a welder. On all my flips I use a lower shock bracket from either a C or B body, whichever I can find
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#958199 - 04/11/11 07:25 AM
Re: How to Lower Your 1972-1993 Dodge Pickup
[Re: BulletBob]
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member
Registered: 11/03/10
Posts: 83
Loc: Ontario Canada
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#958200 - 04/11/11 10:50 AM
Re: How to Lower Your 1972-1993 Dodge Pickup
[Re: Eck]
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master
Registered: 08/19/06
Posts: 8064
Loc: Iowa
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I think he is talking about the spring hanger for the front/rear(where ever it goes) http://www.lmctruck.com/icatalog/cd/full.aspx?Page=121Way cheaper to get stock front spring hangers and use them in the rear and just flip the ones in the front 
_________________________
"MOPAR" its a lifestyle"
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#958201 - 04/12/11 10:28 PM
Re: How to Lower Your 1972-1993 Dodge Pickup
[Re: 76dodgeboy]
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Pickup Man
Registered: 09/02/07
Posts: 738
Loc: TN
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Just did the van LCA swap today. This thread was spot on for me! Helped me git it done! BEFORE:  AFTER: 
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 Ladies and Gentlemen, I introduce to you, Brutus, The Junk Yard Dog!
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#958203 - 04/12/11 11:46 PM
Re: How to Lower Your 1972-1993 Dodge Pickup
[Re: Eck]
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master
Registered: 10/20/05
Posts: 5995
Loc: Back home in PA
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Quote:
Got a pic of one?
I sure don't but the chebbie flip kit Ive used fit a 73-87 1/2 ton. It's a U-shape that fits under the axle & sits on top of the spring like the perch does. It fits into the stock perch from the bottom side.
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#958204 - 04/13/11 07:04 AM
Re: How to Lower Your 1972-1993 Dodge Pickup
[Re: BulletBob]
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member
Registered: 11/03/10
Posts: 83
Loc: Ontario Canada
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Quote:
I sure don't but the chebbie flip kit Ive used fit a 73-87 1/2 ton. It's a U-shape that fits under the axle & sits on top of the spring like the perch does. It fits into the stock perch from the bottom side.
Oh I see......wont need that I have a disc rear end from a 74 imperial...perch is all ready under the axle as oppose to the top like the truck.
Thanks
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#958205 - 04/13/11 07:25 AM
Re: How to Lower Your 1972-1993 Dodge Pickup
[Re: Eck]
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I Live Here
Registered: 05/29/03
Posts: 15186
Loc: Florida
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Quote:
Quote:
I sure don't but the chebbie flip kit Ive used fit a 73-87 1/2 ton. It's a U-shape that fits under the axle & sits on top of the spring like the perch does. It fits into the stock perch from the bottom side.
Oh I see......wont need that I have a disc rear end from a 74 imperial...perch is all ready under the axle as oppose to the top like the truck.
Thanks
your gonna put the Imperial rear axle in a truck?
thats 1 way to get disc brakes 
IIRC the c-body axles are same width as a stock truck axle
the perches have to be moved so a new set is needed
the A-body and truck share the same 43" spring centers for a narrowed axle,my 68 A-body 8 3/4 bolted right in for 12s and fattys
 .... a narrowed to A-body specs disc brake imperieal 8 3/4,i could gain disc brakes and keep the fattys...very interesting 
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#958207 - 04/16/11 11:44 AM
Re: How to Lower Your 1972-1993 Dodge Pickup
[Re: Kevin I]
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Pickup Man
Registered: 09/02/07
Posts: 738
Loc: TN
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Awesome job! Questions: how many inches drop to the axle flip yield? Are those shock mount plates the original ones from the truck or did you have to use different ones? Are using drop shackels in addition to this or doing just the axle flop?
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Ladies and Gentlemen, I introduce to you, Brutus, The Junk Yard Dog!
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#958208 - 04/16/11 12:57 PM
Re: How to Lower Your 1972-1993 Dodge Pickup
[Re: '84 D150 Shorty]
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master
Registered: 08/19/06
Posts: 8064
Loc: Iowa
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Flipping the axle gives about 5-6"(the thickness of the springs, the axle tube and the perch
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