Overdue update: Bolted on the headers. They are close but I need some clearance on the drivers side.
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74 NovaMan's 1979 Chevy Truck - LS Swap - 5/6 Drop
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Originally posted by cstmwgn View PostGas mileage if for wussies
for DDing, you will just drive it in a higher gear around town.
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Originally posted by cstmwgn View PostWith an OD transmission, I would go with the lower gears for pep around town. In fact, I wouldn't run anything higher than 3.5. The wagon has 3.89s and it seems to be able to maintain cruising speed.
oops ( numerical vs ratio stupid attack)Originally posted by Russell View PostDon't fear the gear! Of those two 3.42. I don't think 3.73 (or 4.11)would hurt it.
Drive shaft will be 5" aluminum one piece with 1350 u-joints.
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Don't fear the gear! Of those two 3.42. I don't think 3.73 (or 4.11)would hurt it.
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With an OD transmission, I would go with the lower gears for pep around town. In fact, I wouldn't run anything higher than 3.5. The wagon has 3.89s and it seems to be able to maintain cruising speed.
oops ( numerical vs ratio stupid attack)Last edited by cstmwgn; April 3, 2020, 02:43 PM.
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I'm working with Driveshaft Specialties to build me a driveshaft for the truck. Because the truck is a long box, a one piece driveshaft needs to be a bit ore robust than ones I've bought for the Nova and Mustang. The first thing we determined is that the 1310 u-joint yoke on the rear end will be a weak link. I have a new 1350 pinion yoke on the way to rectify that issue. The main considerations with the driveshaft are length and rotating speed. I can't do anything about the length (without making the shaft a 2 piece assembly), but I can influence the rotating speed with my choice of rear gear. Since I am taking the pinion yoke off, it seems a very logical time to install these:
The question here is 3.08 or 3.42 gears. With my tire size and the overdrive in the 4l60E at 75 MPH the 3.08 gears will spin the motor at 2030 RPM and the 3.42 would be at 2250 RPM.
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Just gotta say......
So I'm not the only Loose Nut that "Saves Everything" !! (Exhaust system it rafters and other treasures)
I call it my NOS Parts supply. (Never Out of Style)
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I picked up the block and rotating assembly yesterday. Block is honed .005 over, new cam bearings and block plugs installed and the crankshaft is balanced.
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Works for me! "I already own it" satisfies almost all of my criteria.
Dan
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