It is currently Mon Nov 24, 2014 6:10 pm





Post new topic Reply to topic  [ 13 posts ] 
93 Ford F150 Tranny Swap 
Author Message
Registered User

Joined: Sun Dec 02, 2012 5:00 pm
Posts: 6
Location: Chino Valley, AZ
Post 93 Ford F150 Tranny Swap
Let me begin by saying that I am brand new in forum but have been doing some reading on here for a while... There is definately some good info!

Currently I have a 93 F150 4x4 with a 300 fuel injected and a 4 speed T18. The gears in rear are 3.55's. I do a lot of highway driving and the 75mph speed limit really is pushing the engine rpm's. Will replacing the tranny with a ZF or NV 4500 lower the rpms enough to gain any fuel mileage? I know the swap is not that cheap especially the NV swap. I appreciate the help!


Thu Dec 06, 2012 8:24 pm
Profile
Global Moderator
User avatar

Joined: Sat Oct 18, 2003 10:49 pm
Posts: 5493
Location: The Great state of Ohio!!
Post Re: 93 Ford F150 Tranny Swap
Do you really need the 3.55 gears??? if you running close to stock height tires I'd think 3.08 gears would work much better for MPG.

_________________
OAPSE Union Member

Real men don't wear Bowties
When it come to engines If its .001 loose nobody knows, But if its .001 too tight EVERYBODY KNOWS!!
80 bronco FUV (farm utility vehicle)300 T-18 3.50s EFI head, offy C dual plenum, 500 edel carb, 1.7 roller rockers, Crane 260 cam EFI Exh


Thu Dec 06, 2012 10:57 pm
Profile
VIP Member
User avatar

Joined: Fri Nov 08, 2002 6:54 pm
Posts: 8004
Location: Copley, OH
Post Re: 93 Ford F150 Tranny Swap
To answer the simplest question: unless you get most of the parts for free, there is no tranny swap or gear swap that will pay for itself in fuel mileage.

What tranny was in your 93 originally and how did it end up with a T-18?

_________________
1996 F-150 (tow missile)
1993 Mustang 5.0 (hot rod and auto-x monster)
1982 Tiga Formula Ford (SCCA racecar)
2013 Hyundai Elantra Coupe (daily driver)


Thu Dec 06, 2012 11:19 pm
Profile
Registered User

Joined: Sun Dec 02, 2012 5:00 pm
Posts: 6
Location: Chino Valley, AZ
Post Re: 93 Ford F150 Tranny Swap
I don't know what was in it orginally. Traded a couple of guns for the truck and it was in it when I traded for it.


Fri Dec 07, 2012 2:18 am
Profile
Registered User

Joined: Sun Dec 02, 2012 5:00 pm
Posts: 6
Location: Chino Valley, AZ
Post Re: 93 Ford F150 Tranny Swap
as far as tires, I am running 31's on it and if it cost me some money to get it to run down the highway better, thats ok.


Fri Dec 07, 2012 10:22 am
Profile
VIP Member
User avatar

Joined: Sat Oct 21, 2006 9:17 pm
Posts: 2444
Location: Spokane, WA
Post Re: 93 Ford F150 Tranny Swap
Back off on your hwy speed to say 62-65 mph and you will get some increase in mpg. Just because the speed limit is 75 mph, nothing says one has to drive at that speed.

_________________
'83 F150 300, 0.030 over, Offy DP, Holley 4160/1848-1 465 cfm, Comp Cam 260H. P/P head, EFI exhaust manifolds, Walker Y Pipe, Super Cat, Turbo muffler, Recurved DSII, Mallory HyFire 6a, ACCEL Super Stock Coil, Taylor 8mm Wires, EFI plugs.


Fri Dec 07, 2012 1:53 pm
Profile
Registered User
User avatar

Joined: Wed Jan 04, 2012 8:43 pm
Posts: 355
Location: Las Vegas, NV
Post Re: 93 Ford F150 Tranny Swap
If that T18 has a granny gear, you can switch the gear ratios to 3.08's.

I put a ZF in mine to set it up for towing. You will need the hydraulic line and master from the donor truck (different style hydraulic line). The trans crossmember will have to be relocated and notched. I used a C6 rear mount (lower to make up for the difference in frame heights). Front driveshaft will have to be lengthened, the rear shortened a couple of inches. Transfer case bolts right up.

_________________
1994 F150, 4.9L/ZF 5 speed, C-Vic police driveshaft
EFI head w/mild port work, 3 angle valve job
1996 long block with stock hyper pistons, ARP rod bolts
Stock speed density PCM
Stock cam installed straight up (aluminum cam gear)
Hedman header, full mandrel bent duals, crossover, super turbos


Fri Dec 07, 2012 2:21 pm
Profile
VIP Member
User avatar

Joined: Sat Nov 09, 2002 10:25 pm
Posts: 4659
Location: FRENCHTOWN
Post Re: 93 Ford F150 Tranny Swap
Harte3 wrote:
Back off on your hwy speed to say 62-65 mph and you will get some increase in mpg. Just because the speed limit is 75 mph, nothing says one has to drive at that speed.

x2
and keep an eye on tire pressures.

_________________
FORD 300 INLINE SIX - THE BEST KEPT SECRET IN DRAG RACING


Fri Dec 07, 2012 2:34 pm
Profile
Registered User

Joined: Sun Dec 02, 2012 5:00 pm
Posts: 6
Location: Chino Valley, AZ
Post Re: 93 Ford F150 Tranny Swap
I would like to put the ZF in. I think it might work out great. I would do all the work myself as I have a small machine shop in the garage (lathe, welder, vertical mill etc...)


Fri Dec 07, 2012 5:19 pm
Profile
Registered User
User avatar

Joined: Wed Jan 04, 2012 8:43 pm
Posts: 355
Location: Las Vegas, NV
Post Re: 93 Ford F150 Tranny Swap
I would do all the work myself as I have a small machine shop in the garage (lathe, welder, vertical mill etc...

I'm envious. I sold my vertical mill two years ago and have always wanted a nice metal lathe.

Should be a piece of cake for you. I welded up my own shafts, got them within .010" runout without a lathe, but it was a lot of work. You just need to find an F250/F350 4x4 ZF from a 5.8/5.0/4.9L truck and you are golden...

_________________
1994 F150, 4.9L/ZF 5 speed, C-Vic police driveshaft
EFI head w/mild port work, 3 angle valve job
1996 long block with stock hyper pistons, ARP rod bolts
Stock speed density PCM
Stock cam installed straight up (aluminum cam gear)
Hedman header, full mandrel bent duals, crossover, super turbos


Fri Dec 07, 2012 8:26 pm
Profile
Registered User

Joined: Sun Dec 02, 2012 5:00 pm
Posts: 6
Location: Chino Valley, AZ
Post Re: 93 Ford F150 Tranny Swap
Well the only reason I have those tools is to build guns but they sure come in handy when you need them. I am going to start looking and get the parts together. I sure appreciate the help!


Fri Dec 07, 2012 9:19 pm
Profile
Registered User

Joined: Sun Dec 02, 2012 5:00 pm
Posts: 6
Location: Chino Valley, AZ
Post Re: 93 Ford F150 Tranny Swap
.010 without a lathe is really good!


Fri Dec 07, 2012 9:20 pm
Profile
Registered User
User avatar

Joined: Sun Nov 22, 2009 5:32 pm
Posts: 420
Location: Twilight zone, WA
Post Re: 93 Ford F150 Tranny Swap
like what Harte 3, if you drive 75 your mileage will suffer even if you change trannys or gear ratio. Wind resistance at 75 mhp is more than double the resistance at 50 mph. This is a big deal in a aero brick like a 93 F-150.

_________________
1995 F-150, 300-6, 4x4, ex-cab, sb, 3.08 5-speed, 2 1/2 in. exhaust w/flowmaster 50, MSD + ignition upgrades, canopy, 171,000 + miles Gone but not forgotten: 1965 F-100 240 3spd lwb "the green hornet"; 1991 f-150 300 5sp 2wd sb, 1960 F-250 4x4, 223 six, 4sp with wrap-around rear window, two-tone paint.
Tow vehicle: 2012 F-250 4x4 6.7 diesel XLT s/c lwb 20+mpg


Sun Dec 09, 2012 4:22 pm
Profile
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 13 posts ] 


Who is online

Users browsing this forum: Google [Bot] and 2 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB © phpBB Group.
Designed by Vjacheslav Trushkin for Free Forum/DivisionCore.