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91
4 Wheel Drives / Re: Pinion Angle Help
« Last post by Chevygold on March 17, 2024, 11:59:28 AM »
If yours is a longbed does it not have a 2 piece prop? At least that would help with the prop shaft angle out of the tranny?

Graham
92
Body, Glass & Paint / Re: Spare parts!!
« Last post by Chevygold on March 17, 2024, 11:50:07 AM »
Eureka!! they hold the carbon canister bracket to the inside of the left fender.

Graham
93
Electrical / Re: vss buffer
« Last post by bo3mrr@aol.com on March 17, 2024, 09:13:05 AM »
Thank you I found out my one wire connector is for RPO LH6 and NB2 diesel engine only.   Thanks again.
94
4 Wheel Drives / Re: Pinion Angle Help
« Last post by Backwoodsballer on March 17, 2024, 08:44:42 AM »
Here are a couple pictures of how it sits now.  Without a double Carson I don’t think the pinion should be so inline with the driveshaft.  With the pinion measuring 9.9 degrees and the trans at 2.2 I was figuring I need to drop the nose of the pinion down to match or get close to the same angle the trans has, from what I understand that is what u joints like in order to cancel out vibration.
95
4 Wheel Drives / Re: Pinion Angle Help
« Last post by Backwoodsballer on March 17, 2024, 07:37:32 AM »
I wish I knew more about the actual specs on the lift, the truck is newish to me.  The vibration I get is only at highway speed and feels like a shake more than anything.  In an attempt to try narrowing down my issue without throwing money at i, I figured I would start with taking measurements on the driveline angles.

I already put quality u joints on the rear shaft within the past month.  With the measurements I took it looks to me like my rear pinion angle is pointed very high in comparison with the transfer case. 

The reason I’m trying to get clear answers on this is because I’ve heard people with block lifts don’t need to add shims since it’s not really changing the geometry, but my spring lift must have changed it in a way that caused the pinion to point up
96
Body, Glass & Paint / Re: Spare parts!!
« Last post by VileZambonie on March 17, 2024, 07:22:37 AM »
97
4 Wheel Drives / Re: Pinion Angle Help
« Last post by VileZambonie on March 17, 2024, 07:18:49 AM »
There are several factors to consider but if your feeling is that the rear pinion is up too high with a 4" lift, I would question why? Some pics would help. A body lift is going to affect linkage and cause other potential issues if dropping the transfer case. Flipping the spacers on the transfer case can help get a better driveshaft angle if necessary but I wouldn't with the body lift. Spring length, arch, hangers and shackles also change things so you need to figure out what's going on. Did the vibration just start? Are the u-joints good?
98
Electrical / Re: vss buffer
« Last post by zieg85 on March 16, 2024, 05:38:59 PM »
As far as I know this is for the cruise control on 82-87
99
4 Wheel Drives / Pinion Angle Help
« Last post by Backwoodsballer on March 16, 2024, 12:14:21 PM »
Hi all, I am new to the forum.  It’s rare for me to feel the need to make any posts about questions since everything has been discussed at length usually, especially pinion angles.  My issue seems to be odd which is why I’m looking for some help.

My truck (1978 k10 long bed) has what I believe is a 4” suspension lift (no blocks, full leaf lift) and 3” body lift.  The issue I’m having is that I believe my truck has a pinion angle that is pointed too high leading to vibration issues.  From what I gather, most people don’t need angle blocks with a lift on long beds and if they do need them they are installed to point the pinion higher toward the transfer case.  In order for my transfer case and my pinion to be closer matching in angles I would need to install angle blocks backwards to point in down some.

My measurements below were pulled using the Tremec driveline angle finder.
Transfer case: 2.2 degrees
Driveshaft: 13.2 degrees
Rear pinion: 9.9 degrees


Am I correct in thinking I need to install angle blocks backwards to try and get my pinion angle closer matching to the transfer case?  Or would this be a candidate to drop the tcase to lessen the difference between the tcase and driveshaft?  Either way, I think something is wrong here and is likely causing my highway vibration issue

Thanks everyone
100
Electrical / vss buffer
« Last post by bo3mrr@aol.com on March 15, 2024, 04:12:05 PM »
Hello I have a 1986 k10 my vss has two connectors on the opposite side of the wires going to the speedometer one connector has three wires and the other has one wire. My question is where the one wire connector goes to ?
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