Need some input on setting up my rear suspension with notch - The 1947 - Present Chevrolet & GMC Truck Message Board Network

six5 · 03-18-2009, 11:41 AM

Alright here is the deal. I just finished up my notch on my truck. I am going to start building my new lower control arms and wishbone setup. What is the preferred pinion angle on the rear end? I am thinking 4 degrees up? And I am assuming I will need to set the pinion angle for ride height because the pinion angle will change when the truck is fully aired up or aired down?

Any suggestions or tips are welcomed.

Thanks.....

abadsvt · 03-18-2009, 12:04 PM

I would set it up for about 3-4degs and then after you get the motor and tranny installed you can adjust the rear pinion angle by adjusting the wishbone or the lower bars. You want your pinion angle of the rear end to be the opposite of your tranny. For example. If your tranny is set at a -3deg you want your rear end to be at +3 so they cancell eachother out. Also you need to set you angles at ride height. That make sence?

Josh

66chevy PROSTREET · 03-18-2009, 12:26 PM

i say 1* total

six5 · 03-19-2009, 01:16 AM

Thanks for the info Josh and Pro Street.

Twisted Minis · 03-19-2009, 01:27 AM

Is it a one piece drive shaft? Rule of them is if your motor is angled at 5 degrees (tailshaft pointing down) your pinion should be up 5 degrees.

If it's a 2-piece, there is some math involved. I won't explain it in case yours is a one-piece. I'm also tired so it might not even make sense right now.

And yes, set it at ride height.

six5 · 03-19-2009, 01:37 AM

Twisted thanks for the info. I do have a two piece drive shaft. Get some sleep Twisted....!!!

ElkyRacer · 03-20-2009, 11:11 PM

Last I looked Air Ride Tech's website had a great article on pinion angle and driveshaft angle and such.

Kyle

03-18-2009, 11:41 AM	#1
six5 Registered User Join Date: Mar 2009 Location: Reno, Nevada Posts: 128	Need some input on setting up my rear suspension with notch Alright here is the deal. I just finished up my notch on my truck. I am going to start building my new lower control arms and wishbone setup. What is the preferred pinion angle on the rear end? I am thinking 4 degrees up? And I am assuming I will need to set the pinion angle for ride height because the pinion angle will change when the truck is fully aired up or aired down? Any suggestions or tips are welcomed. Thanks..... __________________ -Dave My 1965 build...http://67-72chevytrucks.com/vboard/s...d.php?t=331302

03-18-2009, 12:04 PM	#2
abadsvt Senior Member Join Date: Aug 2006 Location: Atascadero, CA Posts: 1,152	Re: Need some input on setting up my rear suspension with notch I would set it up for about 3-4degs and then after you get the motor and tranny installed you can adjust the rear pinion angle by adjusting the wishbone or the lower bars. You want your pinion angle of the rear end to be the opposite of your tranny. For example. If your tranny is set at a -3deg you want your rear end to be at +3 so they cancell eachother out. Also you need to set you angles at ride height. That make sence? Josh __________________ (Project truck) 1970 C10 under complete transformation My current build thread http://67-72chevytrucks.com/vboard/s...d.php?t=212871 Other project: C5 corvette swap into 70 c10 http://67-72chevytrucks.com/vboard/s...=1#post2413517 On Hold Last edited by abadsvt; 03-18-2009 at 12:05 PM.

03-18-2009, 12:26 PM	#3
66chevy PROSTREET SOLD Join Date: Jul 2008 Location: Poorest state in America(Breaux Bridge,Louisiana) Posts: 370	Re: Need some input on setting up my rear suspension with notch i say 1* total __________________ 1966 CHEVY FLEETSIDE SOLD 11-29-9 TRUCK THREAD- http://http://67-72chevytrucks.com/vboard/showthread.php?t=301368&page=2

03-19-2009, 01:16 AM	#4
six5 Registered User Join Date: Mar 2009 Location: Reno, Nevada Posts: 128	Re: Need some input on setting up my rear suspension with notch Thanks for the info Josh and Pro Street. __________________ -Dave My 1965 build...http://67-72chevytrucks.com/vboard/s...d.php?t=331302

03-19-2009, 01:27 AM	#5
Twisted Minis Registered User Join Date: Nov 2008 Location: Windsor, CA Posts: 500	Re: Need some input on setting up my rear suspension with notch Is it a one piece drive shaft? Rule of them is if your motor is angled at 5 degrees (tailshaft pointing down) your pinion should be up 5 degrees. If it's a 2-piece, there is some math involved. I won't explain it in case yours is a one-piece. I'm also tired so it might not even make sense right now. And yes, set it at ride height. __________________ If you can find it cheaper, I can fix it!

03-19-2009, 01:37 AM	#6
six5 Registered User Join Date: Mar 2009 Location: Reno, Nevada Posts: 128	Re: Need some input on setting up my rear suspension with notch Twisted thanks for the info. I do have a two piece drive shaft. Get some sleep Twisted....!!! __________________ -Dave My 1965 build...http://67-72chevytrucks.com/vboard/s...d.php?t=331302

03-20-2009, 11:11 PM	#7
ElkyRacer Registered User Join Date: Feb 2007 Location: Texarkana Tx/Ark Posts: 143	Re: Need some input on setting up my rear suspension with notch Last I looked Air Ride Tech's website had a great article on pinion angle and driveshaft angle and such. Kyle



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