'67 cj5 with t-5 and d300

Will a T-5 and a d300 bolt up to the bell housing and the offset original axles of my 225 v6 67 cj-5? If not what will i need to do to get these to work? Also is the tranny and t-case better than the t-90 d18 combo i currently have as far as strength and reliability? thanks a lot for any help here.

 

Nope. The bellhousing pattern is totally different. D300 is centered output. Driveshaft angle will be too large with your offset axle. You could change to a centered rear axle, but the ratio would have to match your front axle ... or else change the front axle too.

There's nothing wrong with the Dana 18 - the D300 is stronger (but not wildly stronger), and probably more durable since the usual 2WD output is straight through. Lots of Jeepers have used the Dana 18 with V6 engines with excellent results though. Rebuild it, use a quality hardened intermediate shaft, keep oil in it, and you're good to go.

The T-5 is a light-to-medium duty car transmission, and probably would be ok with the V6. IMO you'd be much better off with the Borg-Warner 3-speed and a Warn overdrive than with the T-5. (A '67 with a 225 should have a T-86, not a T-90 - only the F134 Jeeps got the T-90 in '67). If you want to upgrade, I'd suggest one of the truck 4-speeds, like the SM420 or T-18. That would be a substantial upgrade in both strength and durability. (Note that I wrote durability, not reliability. I don't think any of these components are unreliable if in good condition. You can wear them out, but that's durability, not reliability.)

 

thanks a lot, the top cover of the tranny says t-90 but I have heard not to trust the casting number. How can I identify the tranny? What can I look for inside to identify it?

 

No tag? Could be a T-90 that's been swapped in, or your Jeep may have come with a F134 from the factory. If there's no tag under one of the cover bolts, the T-86 should have "T86" cast into the side of the transmission. A T-90 top may fit on a T-86, I'm not sure. The guts of a T-90 will go in a T-86 case, but you have to use everything from the T-90.

 

hmmm, i dunno. would a t90 not have been paired with a 225 from the factory?

 

Nope.

 

how can i identify a t-90 from looking at the internals?

 

heres a pic.... i was trying to reinstall the roller bearings that fell out when i pulled the t-case off.... i was yanking on the case before i realized i had to remove the od cover and pull the shaft nut on the end.... I know, not smart.. the castings on the cover said t-90....

 

the t14 is a good replacement for the t86/90. it's fully scyro'd (like the t5) and only 5/8" longer than the t86/90.

 

Don't look at the cover, look at the case. All the B-W 3-speeds have their ID cast into the side of the case.

If you're going to swap another 3-speed, I'd suggest the much stronger T-15 rather than a T-14. However, if it were mine, I'd either keep what I had or swap in a truck 4-speed. Both the T-90 and T-86 will be adequate with the 225 as long as you don't try to speed-shift at full throttle... and the non-synchro 1st isn't much trouble after a little practice.

I can tell the T-86 from a T-90 from the internals, but I can't open your .bmp file. The T-86 will have a beveled 1st gear, the T-90 is straight cut.

 

Ok, I figured out how to open it. Looks like a T-90 to me. Either that or a T-86 case with T-90 internals (look at the case for numbers). Using T-90 gears to fix a T-86 is a common occurrence, since T-90 parts are easy to find, and will work in a T-86 if you swap out all the gears.

 

The t86 uses the same bolt pattern as the t14 the t90 case has a different bolt pattern. The bolt pattern on the t90 transmission to the bellhousing is 4.125 tall by 6.25 wide. The t86 and t14 are almost square at 5.75 tall by 6.0 wide.