Thanks mate. So I have a lead on a commo v6 t5. I've just unpacked my kit and I have an input shaft In it also. If I post pics can you tell me what it is?
The Tremec T5 gearbox swap FAQ, OZ edition, v1.02 (updated 2022-09-03)
Get pics of -
the tag on the boxthe maincase part numberthe extension housing part numbermeasurement of the input shaft length
Major Ledfoot@pigdog - As long as the input shaft is 7.18 inches long from transmission face forwards, it should be okay to use with one of the off-the-shelf kits. If the spigot end of the input shaft isn't 17mm OD, you'll need a different one to the one listed above, with an OD of 35mm to fit into the Volvo crank and an ID of whatever the spigot end of your input is.
Not sure which kit you have, so to cover them all: The DeeWorks kit has its own input shaft retainer flange which fits into the M45 bellhousing, and the instructions with that kit tell how to re-shim the end float on the input shaft. The VQ and BNE plates use the original T5 input shaft retainer.
I may have a problem.
the input shaft in the falcon box isn't as long as you said it needs to be.
Ayup; a 167mm Ford 6 shaft. What is the tag number on the box?
- Edited
the guy I got it off bought and installed this Shaft so guessing he got the wrong one?
it's the correct spline for the VQ clutch
there's no tag on the box.
he told me it was a El falcon box and I confirmed that by the size of the box
So pics. Box tag reads 94DA 7003 AA, ef or el world class box. Has wc cup for layshaft bearing.
It has a 10 spline, short, taper bearing input shaft. I pulled it out to check. The dia of the cog is identical to my shaft in my kit, and it is 23 teeth on both. However my kit is a needle type shaft.
I cant find a case part number. Back housing is in lowest pic. It had a 6cyl bellhousing.
pigdogthe guy I got it off bought and installed this Shaft so guessing he got the wrong one?
it's the correct spline for the VQ clutch
there's no tag on the box.
he told me it was a El falcon box and I confirmed that by the size of the box
Was it ever fitted to a Volvo? Did you buy it from someone on Oz Volvo?
@sloth - 0552-012 / 94DA-7003-AA was used in the EF XR6.
Pic #2 of your post above is a needle roller input shaft, for sure.
Pic #3 - Which shaft is that? What are the rest of the numbers on it?
Pic #4 - That same extension housing (903) is used on the EL V8 boxes.
Major Ledfoot@sloth - 0552-012 / 94DA-7003-AA was used in the EF XR6.
Pic #2 of your post above is a needle roller input shaft, for sure.
Pic #3 - Which shaft is that? What are the rest of the numbers on it?
Pic #4 - That same extension housing (903) is used on the EL V8 boxes.
Same needle shaft just from another angle. It's a Ford v8 shaft by size etc. Can I use this box? Or do I need a commo v6 one? Could I get that shaft machined out to take the taper bearing?
@sloth writes:
It's a Ford v8 shaft by size etc.
I presume you mean the needle roller shaft is the Ford V8 size?
Can I use this box? Or do I need a commo v6 one?
If you want to use that box, you'll need to get the input shaft lengthened. Might be an idea to give Gear Repair Australia a call and see how much that costs these days.
If you want to use a V6 Commodore box, you'll need the extension housing and top cover/shift rod from the Ford box so you won't need rear seat passengers to change gears. ? (The Commodore V6 extension housing puts the shifter at 23 inches + plate from bell).
Could I get that shaft machined out to take the taper bearing?
You can, but it will be quite weak and it still won't fit, because the gear helical angle is different between the gear on the cluster in your box and the gear on the input shaft, although the tooth count might be the same. This is why I wrote [8] above and recommended the use of V8 Ford boxes, which don't have this hassle since V8 boxes use an 070 cluster, thus there''s a wide range of inputs which drop straight in without problems..... hmm, maybe I ought to add all that to [8].....
The least expensive solution if you want to use that gearbox is to get the input shaft lengthened.
Major Ledfoothttps://ozvolvo.org/discussion/comment/204024#Comment_204024
Was it ever fitted to a Volvo? Did you buy it from someone on Oz Volvo?
I bought it all off @Ravanelli it was never installed in a Volvo it was meant to go into his 240T
Major Ledfoothttps://ozvolvo.org/discussion/comment/204033#Comment_204033
Ah, so you're in a similar boat to @sloth. Gear Repair Australia group buy time?
well shit.
I'm not going to go down the extending the input shaft route it's going behind my turbo so I don't like it's chances lasting.
so I either need to source a v8 El falcon box or a v6 commodore box and use my El extension housing?
Yeah I'm aiming to put 400bhp through this so a shaft wont work. Has anyone spoken to tremec and asked if there is a front shaft to do what we want?. As said v8 box seems easieest, but 1k plus for one now is getting silly. I may rethink this all and see what I can do.
One final idea, what about taking 25mm out of the bell housing height and running the stock 6 cylinder shaft?
- Edited
@pigdog - Gear Repair Australia seemed to do a decent enough job for Tree's box - it went behind his 740T which saw a fair amount of track work, and it didn't fail.
EB-EL V8 box with a 903 extension housing is what to hunt for, if you're going down that path.
slothOne final idea, what about taking 25mm out of the bell housing height and running the stock 6 cylinder shaft?
That won't leave much meat on the M46 bell for bolting on the adapter plate..... Seems to me you'd have to take off so much off of the bellhousing that you'd need to weld in the plate, not bolt it on.
YMMV, but it seems like a huge job and a lot of hassle to me - you'd need to fabricate your own adapter plate out of alloy so it can be TIGed to the Volvo bell you've just cut up. Don't forget about the precision required; Tremec's runout spec is 0.005 inch, maximum.
Speaking of runout, it might be an idea for you guys to do runout checks with the adapter plate bolted on the bellhousing and then using offset dowels, if necessary, to make sure runout is within spec, before bolting the transmission into the car. The vid below isn't Volvo content, but it gives you an idea of what needs to be done.
https://www.youtube.com/watch?v=OAYmaVggnZgPS: This one makes things a bit clearer.
https://www.youtube.com/watch?v=fu9bg-fJdnc
Is there any reason you can't use the factory dog dish lh2.4 flywheel?
volvodrivermanIs there any reason you can't use the factory dog dish lh2.4 flywheel?
You can use one, however your clutch options are a bit more limited and more expensive.... if you can find a dogdish LH2.4 flywheel in OZ.
The standard factory flat flywheel (can take 240mm) also has the advantage of being lighter than the dog dish (takes 228mm).
Dog dish weighs about 14kg (32lb); the early flat factory flywheel is about 10kg (22lb); the later flat factory flywheel is about 13kg (28lb). That's before we get into the fancy TTV and JVAB steel flywheels.
JohnLane on TB also mentioned how the only flywheels he's seen come apart violently have been modified dogdish types.
IIRC VQ's swaps use a Falcon clutch setup on a flat flywheel which is plenty strong for the dollars spent.
Yoshifab also offer a range of clutches for dogdish and flat flywheels, but things can get real expensive real quick these days with importation and shipping costs.
YMMV, but it seems to me that a flat flywheel gives the best bang for bux, without the bangs.
Ok cool, reason for the question is I'm running a dogdish flywheel in the gt with a sachs performance clutch and would sooner keep it all when I eventually fit a t5 box.
Probs a question for @Major Ledfoot In regards to the longer input shafts required for redblock T5 swaps, is it due to the clutch plate location and the splines not reaching the required depth/location, or is it purely the snout reaching the spigot bearing?
Just wondering if something like this input shaft support adaptor would enable people to use the Falcon box without swapping the input shaft.
"Retro Turbo: Volvo Motorsport UK | M90 Mainshaft Support Adapter (PRT)" http://www.retroturbo.com?product=m90-mainshaft-adapter-prt