Power Assist Rocks!!
Freshman User
Joined: Sep 2012
Posts: 29
Likes: 0
From: Oklahoma
Montana, i don't know how to tell if I have 2wd range. How can I test to find out? Also, how would I know if T-case has been modified for true part-time?
Remember, my transfer shifter shows only LOCK, LO, Neutral, and LOCK HI. I have not tried to drive in 4wd yet because I do not know the proper procedure.
Re: power steering conversion, I am fine with doing 78/79 conversion myself, and would really prefer this if I know what parts I need to scrounge.
Thanks again for all the help and education.
Remember, my transfer shifter shows only LOCK, LO, Neutral, and LOCK HI. I have not tried to drive in 4wd yet because I do not know the proper procedure.
Re: power steering conversion, I am fine with doing 78/79 conversion myself, and would really prefer this if I know what parts I need to scrounge.
Thanks again for all the help and education.
Post Fiend
Joined: Apr 2008
Posts: 8,261
Likes: 15
From: Big Sky Country
I suspect you just have lockouts installed but not a converted t-case, unlock the hubs and engage all four gears on the t-case and watch the front drive shaft each time as someone drives the truck forward, if it spins in all four gears the t-case is still full-time.
If that is the case then all the lockouts will do is prevent power from reaching the front wheels (when disengaged), the t-case will still send power to the front axle.
Freshman User
Joined: Sep 2012
Posts: 29
Likes: 0
From: Oklahoma
So, if transfer case still full-time, when driving i am turning the front axles? Shoot! what'll that do to my fuel mileage? I already have to replace the carburetor. PO installed a Holley 750 on a stock 390. when i start, or am idling I can smell rich exhaust. I am going to get a 600 cfm carb to replace. Think I'm getting around 8 or 9 mpg right now.
What about switching to NP205? are they hard to find? is the swap straightforward? I mean, no modifications, etc.?
What about switching to NP205? are they hard to find? is the swap straightforward? I mean, no modifications, etc.?
Post Fiend
Joined: Apr 2008
Posts: 8,261
Likes: 15
From: Big Sky Country
A 203 that's not been converted to part-time will certainly rob you of at least 1mpg, more realistically upwards of 2mpg, when you're barely getting 10mpg to begin with that's a nearly 20% reduction in gas mileage!
205's are readily available in most junkyards and will set you back about $150-200, along with the t-case itself you"ll also need the shifter and linkages, lockouts (which you already have), the mounting plates that attach the 205 to the crossmember as well as the front/rear driveshafts, it's best to find a donor truck and get all parts together if possible.
205's are readily available in most junkyards and will set you back about $150-200, along with the t-case itself you"ll also need the shifter and linkages, lockouts (which you already have), the mounting plates that attach the 205 to the crossmember as well as the front/rear driveshafts, it's best to find a donor truck and get all parts together if possible.
Cargo Master
Joined: May 2011
Posts: 2,387
Likes: 138
From: Northern California
I had power assist on my F100; would have considered keeping it if the passenger side tie-rod end wasnt $500. Still have the ram w/ brackets and the control valve if anyone wants them; everything else was shot.
Replaced all the linkage with 79 bronco parts when I swapped it over to front discs. Linkage cost $20 vs $500 for one rod end granted it was 1/2 off day @ pnp. Upgrading to integral costs less than that one part, replacement parts are cheap, less leaky stuff, fewer hoses, smaller turning ratio, and when you look at it your not all like 'wtf is all that shlt!?!'.
Replaced all the linkage with 79 bronco parts when I swapped it over to front discs. Linkage cost $20 vs $500 for one rod end granted it was 1/2 off day @ pnp. Upgrading to integral costs less than that one part, replacement parts are cheap, less leaky stuff, fewer hoses, smaller turning ratio, and when you look at it your not all like 'wtf is all that shlt!?!'.
New User
Joined: Oct 2012
Posts: 1
Likes: 0
From: Georgia
Power Assist rebuild
I've been trying to follow all the links on rebuilding but some may be old now, I'm not sure what is still valid.
I have a 76 F-250 with a leaky power assist cylinder, at LMC they have a Power Cylinder Bushing Kit 45-1063, is that what you need to rebuild it?
I have a 76 F-250 with a leaky power assist cylinder, at LMC they have a Power Cylinder Bushing Kit 45-1063, is that what you need to rebuild it?
Post Fiend
Joined: Apr 2008
Posts: 8,261
Likes: 15
From: Big Sky Country
You need the seal kit, but unfortunately it's obsolete, to my knowledge no vendor, obsolete parts or Ford dealer currently has any.
You can contact this seller on ebay "Crown5ive" and see if he has any seal kits left.
Freshman User
Joined: Sep 2012
Posts: 29
Likes: 0
From: Oklahoma
I agree with you. The power assist is fine for a stock setup. Swapping the gear box is not worth all the cutting/welding. Personally, I think a "Highboy" is a truck you just leave alone. Keep it the stock height. Keep the FE engine. And don't hack the steering. If you want a truck to customize, then start with a 77.5-79.
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Freshman User
Joined: Sep 2012
Posts: 29
Likes: 0
From: Oklahoma
Montana;
I finally got my son to help check for full vs part-time 203. I found that the front driveshaft didn't turn when driving, and when I went to shift the t-case into "LOCK" my 7 year old boy hollered "Dad, look that little thing on the dash says LOCK!!!" We had been wondering what that little thing under the dash was for until then. Anyway, I found that my 203 did have the part-time conversion done.
Thanks for the info and help.
I finally got my son to help check for full vs part-time 203. I found that the front driveshaft didn't turn when driving, and when I went to shift the t-case into "LOCK" my 7 year old boy hollered "Dad, look that little thing on the dash says LOCK!!!" We had been wondering what that little thing under the dash was for until then. Anyway, I found that my 203 did have the part-time conversion done.
Thanks for the info and help.
Post Fiend
Joined: Apr 2008
Posts: 8,261
Likes: 15
From: Big Sky Country
That illuminated "LOCK" indicator is specific to the 203, the 205 didn't have one.
Freshman User
Joined: Sep 2012
Posts: 29
Likes: 0
From: Oklahoma
Yeah, i always hope that my boys will really get into the mechanics of how things work, so they can be somewhat independent when they grow up. It was really funny, though, because he had been looking and touching the thing trying to help figure out what it was.
I've really learned a lot researching and reading these forums.
I am one of those that believes, especially with what I call true "classics", that they should be left as-is.
I've really learned a lot researching and reading these forums.
I am one of those that believes, especially with what I call true "classics", that they should be left as-is.
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