Author Topic: Pinion Angle Help  (Read 21353 times)

Offline Irish_Alley

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Re: Pinion Angle Help
« Reply #45 on: September 26, 2015, 10:20:54 pm »
dual exhaust i would op for true duals then a "h" pipe after the transmission. im not sure but i think 4.11 or 4.56 would be a hard to find gear set for a ½ ton in stock form. yeah you can buy some but be prepared to spend some money
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Offline ehjorten

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Re: Pinion Angle Help
« Reply #46 on: September 28, 2015, 09:21:51 am »
On my '91 I have true duals with Tri-Y headers.  The exhaust is 3" from the collector to the muffler and 2.5" from the muffler back.  There is not a kit for this; not that I have found.  It has to be custom, but custom doesn't have to be expensive either!

On the crew cab with the TBI it is tight on the RH side for the exhaust, between the transfer-case and the frame rail!  It is made even tighter because the factory fuel filter resides in the same area, but it can be done!  For me, I am going to redo my exhaust and I am probably going to step back down to 2.5" exhaust for the full length: dual 2.5" exhaust is good for about 400 HP and the smaller diameter pipe will quiet down the exhaust noise a little.
-Erik-
1991 V3500 - Gen V TBI 454, 4L80E, NP205, 14 bolt FF, D60, 8" Lift on 35s
1977 K20 Silverado - 350, THM350, NP203, 14 bolt FF, D44, Stock Lift on 31s
1969 Chevelle Malibu Sport Coupe - EFI350, THM350
1968 Chevrolet Step-side Pickup - 300HP L6

Offline Motorhead337

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Re: Pinion Angle Help
« Reply #47 on: September 29, 2015, 09:00:19 am »
I might just run some pipes out the side of the rear tires for now. I want to go down to the yard and pull a 5.3/4l60e to swap in. I don't want to spend a lot on this old smoking 350. Thanks for the help!