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Old 11-15-2018, 01:24 PM   #1
New Member
Join Date: May 2018
Posts: 1
1989 Chevy P30 (Sally)

Hey Fam, just thought I would say hello, I might be coming here often for the great tips and tricks. I bought this bus already gutted, with solar panels, CB radio and already registered as an RV in San Diego. The woman before me used it for music festivals and camping trips.

I'm a Mechanic, but not much of a carpenter so looking forward to learning and getting into and building up Sally. It has a 350 gas engine and a th475(3l80HD) transmission. Not having overdrive is really bad, so with the interior build, a new transmission or overdrive addition is at the top of the list.

Is there anyone here that has experience with these particular models? do you think a 4l80e transmission will be enough? the GVWR is 13,500lbs and I want to pull a small jeep behind it. Not sure on gear ratio yet, but it doesnt go above 55 mph comfortably. 70MPH seems top speed that I didn't hit

Anyway, here she is, you'll see me around.....

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Old 11-15-2018, 01:42 PM   #2
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Location: Eustis FLORIDA
Posts: 17,997
Year: 1999
Coachwork: Thomas
Chassis: Freighliner FS65
Engine: Cat 3126
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I pull a huge, heavy trailer with a chevy truck that has a 4l80e.
Trav and Michelle pull an XJ Jeep with a chevy short bus that has a 350/th400. That bus has been across the country pulling a Jeep.
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Old 11-15-2018, 08:22 PM   #3
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Join Date: Jan 2016
Location: Greater Boston
Posts: 482
I was/am thinking of getting a P30-based skoolie.
(The jury is still out - for the size, I could get a full-size shorty, but the looks are unique.)

Here's everything I could find on P30s on
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Old 11-16-2018, 05:31 PM   #4
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Join Date: Jul 2011
Location: Winlcok, WA
Posts: 2,119
IIRC, the 4L80 is what was used on newer model P-30's uses in buses and moho's.

It should be more than enough transmission behind a small block V-8 considering the relatively low weights you anticipate for GCW.
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