Swapping out the T-5 for a TF-999

RMNP CJ-8

Active member
CJ-8.com Member
City
Loveland
State
CO
#1
It's time to swap out the T-5 for the TF-999 I picked up a while back.
The T-5 and Dana 300 are out and now it's time to clean stuff up and replace the gaskets on the Dana 300.
Looks like the front seal on the T-5 had a little leak and some of the clutch linkage was pretty worn. 102450895_636630613868227_7197396746237750706_n.jpg 102838779_673783663473393_8397610177914006539_n.jpg 103264992_560226664693431_1499336889228437690_n.jpg 102956751_546588632894684_7719975789277322919_n.jpg 101663236_539834956698853_6711683194438959805_n.jpg
 

wm69

Scrambler Junkie
LIFETIME
CJ-8.com Member
City
God's Country
State
AR
#3
Post lots of pics and details please! I'm planning on eventually swapping a TF999 into my T176 equipped CJ, and swapping that T176 in place of my T5 in my other Jeep, so would love to see what all is involved. I have a pretty good idea, but pics and build threads always help!
 

certifiablejeep

Definitley Certifiable
LIFETIME
CJ-8.com Member
City
Bedford
State
NH
#4

RMNP CJ-8

Active member
CJ-8.com Member
City
Loveland
State
CO
#6
Post lots of pics and details please! I'm planning on eventually swapping a TF999 into my T176 equipped CJ, and swapping that T176 in place of my T5 in my other Jeep, so would love to see what all is involved. I have a pretty good idea, but pics and build threads always help!
I'll try to take some more pics.
 

MomoJeep

Basic User
CJ-8.com Member
City
Seattle
State
WA
#12
This is a good time to switch to a hydraulic clutch. I did when replacing my T-5 with an AX15, and I'm really glad I did. Got help from Novak.
 

gr8dain

Scrambler Junkie
LIFETIME
CJ-8.com Member
SOA Member
City
Ashburn
State
VA
#14
I planned on doing the same swap. But now that I am putting in the 4.0, I am using the aw4 that came with it. Now I have 4 transmissions and 3 engines (including my son’s 350) in my garage/ shed. My wife calls it Sanford and Son.
 

RMNP CJ-8

Active member
CJ-8.com Member
City
Loveland
State
CO
#16
This is a good time to switch to a hydraulic clutch. I did when replacing my T-5 with an AX15, and I'm really glad I did. Got help from Novak.
If I was going to stick with a manual I probably would.
The TF-999 is in and running great. It's much more enjoyable for the around town stop and go driving.
 

RMNP CJ-8

Active member
CJ-8.com Member
City
Loveland
State
CO
#17
The swap is finished and so far is running great. Before the tranny swap I switched out the weber carb for the Howell TBI and also put in a D.U.I. distributor. Those both really help with performance. I think my timing chain may have a little play and needs to be replaced though, I'm getting a little engine ping under load going up hill over 2300RPM. Checked the timing and made a few changes, I'll see if that helps for now. Really happy with the change so far.

103091805_934810390290589_5887174947052865686_n.jpg 103776662_283195516202902_323443264921271083_n.jpg 103540626_962227854233008_3125501623478006697_n.jpg IMG_1400.JPG 104032129_569123837339428_8666311464835037911_n.jpg
 

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JL8

New member
City
Hood River
State
OR
#18
I would like to do this to my CJ8. I currently have the sr4 tranny and have to hold it in 4th gear. Was the swap pretty easy? Did you have to order new drivelines? Would love some advice.
 

RMNP CJ-8

Active member
CJ-8.com Member
City
Loveland
State
CO
#19
I would like to do this to my CJ8. I currently have the sr4 tranny and have to hold it in 4th gear. Was the swap pretty easy? Did you have to order new drivelines? Would love some advice.
Swapping with the TF-999 made things easier. I believe your SR4 is the same length as my T-5.
I was able to use the same unmodified driveshafts.
I used a Lokar shifter and Lokar kick down cable. I removed the clutch pedal and kept the existing pedal assembly.
You will need the flex plate and crank bolts and a flex plate reinforcement ring.
I also had a radiator with plugs for auto transmission coolant lines and used lines from the donor transmission.
The skid plate and transmission mounts worked with minor adjustments.
You will also need the automatic solenoid.
It was a good swap and I like the change. You might want to verify your axle ratio to see how the change in gearing will effect the change in gearing with the 999.
 
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