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Will a 96 t5 v6 fit a 289 67 mustang...

8K views 9 replies 5 participants last post by  v8only  
#1 ·
Hello, I have a 1996 mustang t5 v6.. Will it fit my 67 mustang 289?
 
#5 ·
The later V6's are fine and a bolt-in. The difference is that the bellhousing is about 7/8 inch deeper and the input shaft is lengthened also. No big deal but it means the shifter will come up in the floor opening a bit further to the rear. It wasn't problem with my '67 when I tried it though I finally used an older V8 T5.
The V6 T5's clutch fork opening is "rotated" more downward than the older ones. This means you can't use the adapters to reuse the vintage Z-bar type clutch linkage. (Why I changed to the older style). Nor can you use any of the hydraulic clutch kits as a bolt-on. (Unless someone has come out with one lately.) You have to use a clutch cable setup. Some folks have reported their cable clutch hits their long-tube headers too. Very late T5's have no provision at all for a speedometer drive (a 1996 should be fine). People have used these T5's though and perhaps some will chime in with more specific stuff.
Though some of the later V6's used 11 inch clutches they all used the standard "small block" 10 spline input shaft.
One way around the clutch linkage difficulties is to swap the input shaft and bellhousing for those from a 1993 or older. Since I have some of that stuff lying about I might try that at some point. I've also kicked around putting the later T5 back in so I can use an 11" clutch. Right now I'm leaving it alone until I gather up some clutch linkage. The rest is all installed and waiting on just that.
 
#6 ·
The later V6's are fine and a bolt-in. The difference is that the bellhousing is about 7/8 inch deeper and the input shaft is lengthened also..
No shhhht, eh?
I lost a V8 T5 recently when a buddy sold it for $500 instead of to me for our agreed $250, the diference between a buddy and a friend I guess.
So it sounds like If it were to bolt up to our stock bellhousing to keep the clutch linkage the same it would only take a thicker spacer than they sell for the V8 T5. Ive seen crossmembers for the tremec/TKO that you locate as needed for the rear mount part. I wouldnt mind the shifter beeing further back.
So except the capacity of the V6 T5 being weaker does this sound like a doable workaround?
 
#7 ·
So began the swap.. But ran in to issues. The 3.8l bellhousing won't fit, but its cause of my headers and it looks like it wont clear the top of the firewall.. So do I have to use a 5.0 bell housing and if so, how big of a spacer do I have to get? (due to 5.0 bellhousing been smaller) . an were do I get it?? or do I have to switch my headers and use 3.8l bellhousing. in other words what bellhousing do I need to use?
 
#8 ·
Im far from expert but ive been researching this myself.
It seems the input shaft is about 1 5/8" longer than the stock tranny. The spacers commonly sold for V8 T5s are only 1". It will likely go together and look right untill you tighten it up then the shaft will be forced to far forward causing ungodly damage.
I recently readt that the T5 input shaft is quite easy to change out so I dont yet understand why folks arent doing that instead of the spacer route.
See Gypsys post about how headers limit the clutch options.
If you have the old tranny out measure the shaft on that and you should know. And dont forget youll need a new crossmember.
Keep us updated. Good luck.
 
#9 ·
I don't know of a spacer, but I haven't looked that far into them. The spacers I've seen are for adapting older T5's to vintage 3 and 4 speed bellhousings.
I don't claim to be an expert, I'm just posting here what I actually tried myself. I know other folks here have used the V6 T5's and I recall one complaint about a clutch cable running directly into a long tube header. I'd kind of prefer the actual folks who dealt with those particular problems chime in, but you can't relay on any certain person being online or reading this post. So secondhand info is better than none.
As far as I know the V6 rated "torque capacity" is as high as an '87 to '93 V8 T5. Suits me.
I've been told by a reliable transmission rebuilder that you can swap inputs between the older T5's and the V6's (except the rare "Cobra" T5). Not quite the same as trying it myself. I have enough bits around that I could. And probably should, so I'll have a backup T5 on deck or one ready for when the '69 gets to that point.
Another one for somewhere on the to-do list.
 
#10 ·
after 1990 the t5s are all the same strength including the v6 trannies...

u need a 94/95 v8 bell housing with that input shaft but good luck finding one...go to astroperformance.com or hanlonmotorsports.com, or the gearbox.com and simply order a new input shaft for an 85-93 v8 mustang...theyre easy to swap in...then u can run the very common 83-93 v8 bellhousing

a 3.8 v6 bell wont work

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