i have a 300 straight six and am very pleased with it but the transmission is worn out like the clutch is.I would like to use a automatic trans but unsure as to which to get. I have a chance to get one for free but its off of a 351 windsor will it fit? will i have to change the flywheel as well or is the the 3 speed flywheel interchangable?


77 f100 300 six
drvndbus aka mark

 

Yes it will work. You will need the Flexplate (auto flywheel) from a same year engine as yours, there is a series year difference. Don't forget to remove the pilot bearing on the end of the crank.

Good Luck

John

 

A 300/6 is an internally balanced motor, the 351W has a 28 oz counterweight on the flywheel/flexplate. The tranny will bolt up but you need to get the flexplate from a 300/6. I swapped a 300/6 w/3sp for a 302 w/C6. The tailshaft of the C6 was much longer and utilized a slipyoke. I had to have my driveline shortened and fitted with a slip yoke end. Which tranny does the 351W have, a C4 or C6? You will need to think about a kickdown linkage. I believe that your 77 would have had a C4 if it was auto. If you are going to use a C4 I'd go hunt down an example in a junkyard and snag the kickdown rod. I couldn't find a suitable kickdown for my C6 because it was not a stock configuration. I was told that a kickdown on a C6 is a convenience and that I wouldn't hurt any thing not running it. The engine went **** in August and after the fact I found that Lockar makes cable adapter kits I could have used. You might look into that. Also you will need to run a vaccum line from your carb to your tranny.

 

Will you go with a afermarket floor shifter or will you change steering columns? If you have power steering you need to get a power steering column if Armstrong then Armstrong column. The power steering column is about two inches shorter. Actually I may think about putting a power steering column in my 69 with no power steering because I wouldn't mind the wheel being closer to the dash (I have a floor shift). You will also need to rig up the neutral safety switch and the backup light switch.

 

BBT: I don't think that simply using the ps column changes the steering wheel position AFAIK. The installed column tube ends up only being shorter between the steering gear and the firewall to accomodate the ps control valve. If you wanted to change the steering wheel position you'd have to use the shorter column and drill out the spot welds for the column mount and reattach it after you re-positioned the steering wheel closer to dash.

Stock Man
1967 Galaxie 500 Convertible (HELP!---I need 15 x5 factory rims)
1967 F-250 FE 390 4wd
1966 F-250 I6 240 2wd LWB Flare Side
<a href="http://www.hometown.aol.com/tbeeee">http://www.hometown.aol.com/tbeeee</a>

 

Not So. The whole column is shorter and he can change the column to get belley releif.

John

 

John:

I'm not being argumentative, but first, what years are we talking about here and have you measured any columns lately? I'd really like to have some definative answers because the conventional wisdom is that you must have a column designed for power steering to do your PS swap. So I checked in my master part catalog to get the specs. Oddly enough they don't have overall length dimensions listed for each year. However, between 1964 and 1972, there are several columns listed to accommodate the three standard transmission options; 4spds (which don't need a column shifter), 3spds(w/column shifter and the two levers out the bottom for the linkages) and automatics (which needs the column shifter, but only a single lever for the linkage). But get this: according to the part catalog there were several examples where the only distinguishing factor was the transmission not the power steering option! There are two pages listed in the catalog showing all of the different part nos. Glancing at it quickly, I didn't see any way to confirm or refute my theory.

Since I can't seem to easily narrow this down with just part nos, I decided to measure a few columns on a few my trucks, one of which has factory power steering. I went from the top of the dash bracket to the top of the column tube where the signal switch attaches. In each case the distance measured 10-1/2"; The bracket does have slots so it is slightly adjustable, but only about an 1-1/4" total. Based on my totally none-scientific testing I stand by my original statement that you must move the bracket to gain any significant difference in belly room. I apologize for this long post and I have the fire-brigade standing by [img]/dcforum/Images/happy.gif[/img]


Stock Man
1967 Galaxie 500 Convertible (HELP!---I need 15 x5 factory rims)
1967 F-250 FE 390 4wd
1966 F-250 I6 240 2wd LWB Flare Side
<a href="http://www.hometown.aol.com/tbeeee">http://www.hometown.aol.com/tbeeee</a>

 

I have purchased two auto, ps columns at the wrecking yard (the first one broke internally after a couple of months), If memory serves, the part that bolts to the firewall, slides up and down the tube as a guide. Perhaps the neutral safety switch would run into the firewall, but a no-shifter column wouldn't have one. I have been dealing with 73-79 stuff, I haven't taken much of a look at my 69 column, although I have a turn signal problem probably related to a shoddy aftermarket steeringwheel installation. Turn Right works OK. Turn left has no click feeling to distiquish between no turn and left turn. The left rear flashes but the front doesn't and the dash doesn't. The bulbs are OK because they work when the 4way flasher is on. I may go to the wrecking yard this weekend or look into an aftermarket turnsignal bolt-on replacement (if there is such a thing) In any case the columns I have delt with, bolted to the steering gear and then held to the bottom of the dash by a bracket, with the plate bolting to the firewall slid into place and bolted to serve as a weather seal.

 

BBT: I am not very familiar with the 73-79 although I know you can swap parts between the 67/72 and 73/79 columns. We did that when my brother built up a 72 4wd frame using a 74 body. We ended up using the 72 4x4's steering shaft in the 74 column so everything looked correct inside the cab. All of the years bolt up as you describe. That firewall mount not only secures the weather seal but it stabilizes the lower part of the column too. If you have time measure up some different columns. I'm curious as to your findings on overall length and the length from the top to the dash bracket.

Stock Man
1967 Galaxie 500 Convertible (HELP!---I need 15 x5 factory rims)
1967 F-250 FE 390 4wd
1966 F-250 I6 240 2wd LWB Flare Side
<a href="http://www.hometown.aol.com/tbeeee">http://www.hometown.aol.com/tbeeee</a>

 

Thom the ps gear has the added length, where the lines connect, so the column has to be shorter. I used the column from a 76 in my 66. I changed from SD to auto so I needed the column for two reasons. I did not measure because I had to have the auto column and thus the column change. The dash is different from the 76, so I had to add longer bolts at the bracket, and two the wheels on the later models don't have as much pitch from the hub to the wheel.(they are flatter) This is maybe a parent answer, just do as I say and don't question it.[img]/dcforum/Images/happy.gif[/img]

I am sorry that I don't have a more scientific answer you you.

John