Wulfdan
Newbie
Hello GMT400 Members, nice to be here. I am hoping that one or more of you can share some wisdom.
I have an old 1995 Class A Motorhome built on a chevy P30 chassis. I wasn't able to bring the 454 around to where it would run without falling on its face so I bought a 454/TR400 used out of another motorhome. This will be the new engine/trans combo because the original is over 270K miles, and the replacements are around 70k. Aside from adapting the older intake for TBI, the big problem I'm facing is the driveshaft changes required to go to the shorter TR400. I tried the googles, but nobody was doing a straight swap, there was other custom involved.
My question is what do I need to swap or replace regarding the yoke/driveshaft to swap from the longer 4L80E to the shorter TR400. My brother bought a kit to take care of the speedo, so we're down to figuring out what needs to happen with the driveshaft. Don't worry about exact length, this monster has a 3 piece segmented driveshaft. I need to know how to properly measure the length, do I need to change the yoke? etc.
Thank you for all your help. Sorry I don't have a super cool truck to show you, but she's got some junk in her trunk ;-)
I have an old 1995 Class A Motorhome built on a chevy P30 chassis. I wasn't able to bring the 454 around to where it would run without falling on its face so I bought a 454/TR400 used out of another motorhome. This will be the new engine/trans combo because the original is over 270K miles, and the replacements are around 70k. Aside from adapting the older intake for TBI, the big problem I'm facing is the driveshaft changes required to go to the shorter TR400. I tried the googles, but nobody was doing a straight swap, there was other custom involved.
My question is what do I need to swap or replace regarding the yoke/driveshaft to swap from the longer 4L80E to the shorter TR400. My brother bought a kit to take care of the speedo, so we're down to figuring out what needs to happen with the driveshaft. Don't worry about exact length, this monster has a 3 piece segmented driveshaft. I need to know how to properly measure the length, do I need to change the yoke? etc.
Thank you for all your help. Sorry I don't have a super cool truck to show you, but she's got some junk in her trunk ;-)