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I have a very low use 489 Yukon 3.91 ratio center section.
I believe it has the Powr-Lok sure grip clutch type diff.
I have run this for a couple hundred miles after purchasing it from the previous owner.
No issues at all, just too steep for my street car.
Feel free to ask questions or...
I have a 489 case 3.55 Suregrip center section that has a whine while running
I believe it is a gear whine. I purchased it knowing it whines. Original owner has been running it for a while and I installed it into my car and ran for a short time. No vibration or any other issues noted.
I’ve...
I have a 8 3/4 center section ,741 case from a B-body car. The gears are marked 2070301-3.58-1. 9-17-62. I have been told it is a Power-Lok clutch type diff.
I installed this in my car and ran it to 100 mph with zero issues.
I removed it and installed the 3.23 back in. (Too steep for me).
Asking...
Edelbrock tunnel ram with 2 Holley 450cfm tunnel ram carbs for small block LA engines.
Linkage included,
I can text video of this setup running on my 340. The ports are untouched.
The intake is in very nice condition. I will clean gaskets off. All threaded bolt holes are in good condition.
I...
SA171P How to build max-performance Mopar big blocks book by Andy Finkbeiner.
Very nice condition, some areas are highlighted (see photos).
Asking 20.00 plus media mail shipping from 80534.
Thanks FBBO