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Starting a new project tomorrow morning. Installing a C-6 behind my 292 in a pick-up truck. using the adapter from bendtson (spelling?).
1. the adapter is about 1 inch thick. will I have clearence problems between the cab and engine?
2. Do I have remove the trans mounts to get the C-6 in place(side mounts on the stick shift) Do I have to cut them or can they stay and still have room to get the trans in place>?
3. Any one ever done this? what am I missing?
THANKS for the help.
I can't answer specifically to your combo, but many years ago I used a Buick motor to Chevy adaptor to run a TH400 in a early '60's Buick, after a little deliberation, I decided it was easier to move the tranny back and relocate the cross member mount than it was to deal with moving the engine forward. I used the same driveline, the 3/4inch or so, didn't seem to be an issue. I had enough room on the tranny housing to firewall, so I went that route.
But it seems to me that you're going to have to make a new crossmember anyways...do you have an extra inch of clearance from the back of the eingine to the forewall? My guess is you should have plenty.
I would think the adapter would have come with instructions as to what modifications had to be made to install the C6. It has been my experience at least on the 48-52 trucks that the use of most any automatic transmission requires a new transmission crossmember. I can't say for sure on a 53-56 but a C6 is a pretty big transmission and it is unlikely that you will be able to keep the original crossmember.
Thanks to all that replied. Looks like I am into this one alone. O well its not the first time I tried doing something one off. Will keep you posted on my progress. I thought by now some body would have tried this one.
Well my first question is answered: You do not have to remove the transmission crossmenber to install a bendtson trans. adapter and a c-6 trans. in this truck.
I got it in yesterday, with a little trouble from the exhaust manifolds, and a very slight mod to the floor panel on the left side. So far the install is going well. I was a little slow to up date on this but as you know, something always tries to hold me up on a project. I am building the trans crossmember now, and also installing the speedometer cable. will keep you up to date when I am able.
PS. How this got started was everyones (my friends) opinion that it could not be done this way. all said you have to cut thr original crossmenber out of there for clearence....WRONG
I am building the trans crossmember now, and also installing the speedometer cable. will keep you up to date when I am able.
PS. How this got started was everyones (my friends) opinion that it could not be done this way. all said you have to cut thr original crossmenber out of there for clearence....WRONG
If you were able to leave the original transmission crossmember in place, why are you "building a transmission crossmember now"? Do you mean you are "modifying" the original? I used a TH350 in my F-3. It is smaller than a C6 and I had to cut my original crossmember out unless I was willing to rebuild the floor and transmission tunnel which would have been a lot more work. Some here have used a C4 by modifying the original crossmember...
Got two great questions one from 3mike6 and one from north woods.(see above) the answer is: This is a truck, and old truck so even with the extra cross member you are still subject to some frame flex. I use my truck to pull my boat on the weekends. I wanted to keep the frame as stiff as possible. that original cross member used to be for the original three speed stick bellhousing. Although I was not going to use it, I wanted to make the installation with less hassle as possible. So even though I need to add a new trans crossmember, for the c-6 trans, it will be fairly easy cause I found one in lmc truck. No mods to body or frame so far. the extra cross member for the trans is very light and mounts with a couple of bolts, and comes with a trans mount.
PS: although i dont plan on it, could take ti back to stick shift if needed. hope this helps you guys.
Do you have any pics of your install? The original mounts for the 53-56 F 100 was a 3 point system and no trans cross member for a 3 speed. The trans cross member was not needed due to the mounts on the bell housing to the engine cross member. Front mount is on the timing cover to the front cross member. Makes it very easy to R&R a clutch.
How is the engine mounted in the 1960 truck? Side mounts on the block?
What does the adapter look like?
Last edited by rogerf100; Feb 6, 2006 at 04:08 PM.
Got two great questions one from 3mike6 and one from north woods.(see above) the answer is: This is a truck, and old truck so even with the extra cross member you are still subject to some frame flex. I use my truck to pull my boat on the weekends. I wanted to keep the frame as stiff as possible. that original cross member used to be for the original three speed stick bellhousing. Although I was not going to use it, I wanted to make the installation with less hassle as possible. So even though I need to add a new trans crossmember, for the c-6 trans, it will be fairly easy cause I found one in lmc truck. No mods to body or frame so far. the extra cross member for the trans is very light and mounts with a couple of bolts, and comes with a trans mount.
PS: although i dont plan on it, could take ti back to stick shift if needed. hope this helps you guys.
Sounds like you've got it under control-I've seen this cross member removed when doing an engine/tranny swap and the weight of the cab on the cantilevered mounts causes the frame to twist so much that the cab hits on the frame rails. It's not pretty and I would imagine pretty hard to fix.
answers: to 3mike 6 this is the story of my life. I always hear of some one doing a project for peanuts. Mine cost dollars. to rodgerf100 this is a 1960 f-100panel truck. it had a three speed 292. So the bell mounts were on the side of the bell houising. sorry no pictures, needed the money for the project. And to fatfords you are right on the money with your comment. I have seen the problems with frame, steering, and sag in the past on these trucks. Its is why I decided to see if removal of the cross member was nessesary. thanks to all for your support.
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