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View Poll Results: T-18 or no?
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Yes
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69 |
75.82% |
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No
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22 |
24.18% |
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11-02-2006, 01:20 PM
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#1
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Registered User
Join Date: Sep 2006
Location: Colorado Springs, CO
Posts: 55
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Just wondering how many of you have the 4 speed T-18 transmission in your rig?
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11-02-2006, 01:26 PM
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#2
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Registered User
Join Date: Sep 2002
Location: York, PA
Posts: 637
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Installed a 6.32:1 T-18 in my '71 CJ5 back in 1995. The improvement in control offroad is phenomenal.
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11-02-2006, 01:27 PM
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#3
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Registered User
Join Date: Sep 2006
Location: Colorado Springs, CO
Posts: 55
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Quote:
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Originally Posted by lynn
Installed a 6.32:1 T-18 in my '71 CJ5 back in 1995. The improvement in control offroad is phenomenal.
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Ya I love it! 
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11-02-2006, 01:33 PM
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#4
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Senior Member
Join Date: May 2004
Location: SoCal
Posts: 851
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t-4 soon to be replaced by an sm465
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11-02-2006, 03:19 PM
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#5
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Registered User
Join Date: May 2004
Location: Hendersonville, NC
Posts: 325
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It has been well worth the cost. I have done a total of six 3-speed to T18 swaps. Most were replacing a T150 and a couple were T14 replacements.
__________________
Jeep #1 = 76 CJ5, 304, T18, Twinstick Dana 20, Lock-Right in front, Yukon HD front axles, One piece axles - Detroit Locker in rear, 2.5" Rancho Springs, 1" lift shackles, 32x11.5 Super Swamper TSL/SX, Warn XD9000i, York OBA.
Jeep #2 = 80 CJ7, 401, T18, D300, 3" Black Diamond Lift, TrXus M/T 33x12.5, Yukon 1 piece axles, Auburn posi in rear, Detroit TrueTrac in front, Ramsey 8000.
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11-02-2006, 03:23 PM
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#6
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Registered User
Join Date: Jul 2006
Location: UT
Posts: 673
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Quote:
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Originally Posted by plain76cj5
It has been well worth the cost. I have done a total of six 3-speed to T18 swaps. Most were replacing a T150 and a couple were T14 replacements.
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Were any of those with a 304 in front of the T150? How easy is the swap? Can the T18 use the Dana 20 transfercase?
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11-02-2006, 05:08 PM
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#7
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Registered User
Join Date: Jul 2006
Location: fort collins, Colorado
Posts: 110
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i don't have one yet but i am looking for one. anybody know of one for sale at a reasonable price?
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11-02-2006, 08:22 PM
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#8
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Registered User
Join Date: May 2004
Location: Hendersonville, NC
Posts: 325
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All but one was behind an AMC V8. Three 304's, two 360's and one 258 if anyone is counting. The T150 to T18 swap isn't all that difficult. I have used an AMC T18 in all the swaps that I have done. If you can find (afford) a CJ T18, the swap is very easy. Four times I have used a long input shaft T18 from a fullsize J Truck or Waggy. You have to use a short shaft kit, which you can get from PartsMike.com.
Also, I have used the D20 transfer case in all the swaps. There is a factory adapter plate between the tranny and t-case. As long as you have that, bolting the D20 is easy. This adapter plate is also where the trans mount bolts.
You have to move the skid plate back on the frame. There is already holes for this in the frame. The front driveshaft will have to be lengthened and the rear has to be shortened. The T18 / D20 will be about 3 inches longer than the T150 / D20.
__________________
Jeep #1 = 76 CJ5, 304, T18, Twinstick Dana 20, Lock-Right in front, Yukon HD front axles, One piece axles - Detroit Locker in rear, 2.5" Rancho Springs, 1" lift shackles, 32x11.5 Super Swamper TSL/SX, Warn XD9000i, York OBA.
Jeep #2 = 80 CJ7, 401, T18, D300, 3" Black Diamond Lift, TrXus M/T 33x12.5, Yukon 1 piece axles, Auburn posi in rear, Detroit TrueTrac in front, Ramsey 8000.
Last edited by plain76cj5; 11-02-2006 at 10:03 PM..
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11-02-2006, 08:51 PM
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#9
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Registered User
Join Date: Sep 2004
Location: NW Arkansas
Posts: 130
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Quick dumb question... I recently picked up a 78 with a T18, should I assume it's the good 6.32 low range, or could it possibly be the crappy 4.xx one? It's factory original. Most of the sources say it should be the 6, but not all...
Anybody know?
__________________
04TJ X
12JKU Rubi
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11-03-2006, 05:59 AM
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#10
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Registered User
Join Date: Jul 2005
Location: Culpeper, VA
Posts: 1,082
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I have two. Both sitting on a pallet next to the Jeep.
I gotta get my act together and sell some junk. 
__________________
79' CJ7 - D30/D44, T150/D20, 3.73's, MC2100, Team Rushed, YJ top, 4" with 33" KM1, winch, skids, homemade bumpers, spray paint and a cool shift knob.
98' TJ D30/D35, 2.5" lift, 31's on Rubi rims, winch, skids, she wheels it.
06' COMMANDER, 2" lift
81' CJ8 bone stock (MC2100, Team Rushed)
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11-03-2006, 07:01 AM
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#11
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Web Wheeler
Join Date: Aug 2004
Location: Versailles, KY
Posts: 2,182
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4:1 will be syncronized. The 6.32:1 will be straight geared. The 4:1 isn't bad. Nice to have more than three road gears. Just go lower in the t'case.
BTW...I like my T18
__________________
Anything is possible if you don't know what you are talking about.
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11-03-2006, 09:02 AM
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#12
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Registered User
Join Date: Jan 2006
Location: Tomball, TX
Posts: 540
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I don't know why anyone would say "no" on this poll.
I picked mine up for around $450 with a Dana 20 and adapter plate. The tranny is much bigger than the smaller 3 speeds but it's short enough that I am going to swap it into my CJ-5 and the angles aren't too bad.
I am not yet done with my buildup but I can't wait to have the strength and the added control of the 6.32 first gear.
__________________
'77 CJ-5 258/T-18/D20 & D30/AMC20) + Painless! Wiring Harness + Bestop Replace-a-top
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11-03-2006, 11:01 AM
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#13
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Registered User
Join Date: Feb 2005
Location: Bel Air, MD/Blacksburg, VA
Posts: 281
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what about using a ford t18 to do the swap. you can find em in 80's model 3/4 tons or something like that right?
__________________
79 CJ5 304/T18/Dana 20/30/20(alloy's + locked)
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11-03-2006, 11:42 AM
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#14
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Senior Member
Join Date: Feb 2002
Location: Harmony, Pa
Posts: 831
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Quote:
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Originally Posted by collinpyle
I don't know why anyone would say "no" on this poll.
I picked mine up for around $450 with a Dana 20 and adapter plate. The tranny is much bigger than the smaller 3 speeds but it's short enough that I am going to swap it into my CJ-5 and the angles aren't too bad.
I am not yet done with my buildup but I can't wait to have the strength and the added control of the 6.32 first gear.
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Maybe because the poll asks if you RUN at t18 in your jeep. I do not. (But I'd like to)
__________________
'84 CJ-7 Junkyard TBI 360/T18/D300, 4" 4WDH Lift, D44 front with ARB and HS/D44 Rear w/ Detroit, 4.56s, 36" Iroks, TFI, TJ flares, Homemade rocker guards and bumpers with swing out, Optima Yellow Top, M8000, York OBA, 6pt cage
"when you're up to your *** in alligators, it is hard to remember that your original intention is to drain the swamp"
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11-03-2006, 12:39 PM
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#15
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Registered User
Join Date: Jul 2005
Location: Culpeper, VA
Posts: 1,082
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Quote:
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Originally Posted by 79CJ54wheeler
what about using a ford t18 to do the swap. you can find em in 80's model 3/4 tons or something like that right?
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Gotta convert the back end and use an adaptor to bolt up a tcase. Don't know about the front, I'm still getting my pieces together myself.
I think even the clutch parts is interchangeable to a point. I think for the Ford Tranny you need a special bushing/bearing for the input shaft.
All can come from Novak or Advance adaptors.
And this I all learned from here, there is someone who probably is better versed in this.
__________________
79' CJ7 - D30/D44, T150/D20, 3.73's, MC2100, Team Rushed, YJ top, 4" with 33" KM1, winch, skids, homemade bumpers, spray paint and a cool shift knob.
98' TJ D30/D35, 2.5" lift, 31's on Rubi rims, winch, skids, she wheels it.
06' COMMANDER, 2" lift
81' CJ8 bone stock (MC2100, Team Rushed)
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T-18 Transmission
