4+3 trans swaps
Safety Car
Joined: May 2006
Posts: 4,290
Likes: 140
From: Salem NH
It does seem to have an effect compared to my 4+3 with the sprung hub. Although I haven't driven a pull type clutch with the fbody flywheel to compare, so the short travel and higher pressure plate force could be partly to blame. The clutch is a bit more grabby, so it takes a little more finess to engage seemlessly from a standstill. (My car is a bad example, because my throttle body is all screwed up and binds when trying to feather it off idle.)
Basically what it means is if you toss someone your keys they'll probably stall it a few times while getting a feel for it. I haven't noticed any difference while racing.
Basically what it means is if you toss someone your keys they'll probably stall it a few times while getting a feel for it. I haven't noticed any difference while racing.
For what it's worth, on my formula from like 5 years ago, I had a ram 6 padal race clutch, but I had them put a sprung hub in it for street use. That was dumb because any time you slipped the clutch, and it chattered it would amplify like a slingshot. be like a 16 year old driver.
Safety Car
Joined: May 2006
Posts: 4,290
Likes: 140
From: Salem NH
Joe, the 4+3/D44 yoke splines stop 1/2" before the front of the yoke. It looks like the output seal was riding almost exactly 1.25" in front of the balancer.
Also the first 1" of the yoke OD ahead of the balancer is pretty rough/rusty. I'm not sure if that means GM didn't polish that part of it, or just that it was shiny there and just corroded from being exposed to the elements for 20+ years.
Also the first 1" of the yoke OD ahead of the balancer is pretty rough/rusty. I'm not sure if that means GM didn't polish that part of it, or just that it was shiny there and just corroded from being exposed to the elements for 20+ years.
I should talk to Tom at Pro Street about stocking shifters or at least shifter sticks for the swap.
-- Joe
Safety Car
Joined: May 2006
Posts: 4,290
Likes: 140
From: Salem NH
The adapter changes should be done by today. I spoke with Tom last night. He's going to move the mounting holes fro the cbeam 3/4" forward, and bring them about 1/2" or more closer to the centerline of the transmission.
-- Joe
-- Joe
Safety Car
Joined: May 2006
Posts: 4,290
Likes: 140
From: Salem NH
Err I just realized you have an 84. So you got the Dana36 too. Good for you, no driveshaft shortening problems.
Did you call mcleod about the shifter? I havn't bothered since I'm gona modify the hurst I have but it would be nice to know the price + part number.
I'm also gonna call hurst monday and ask them about offset sticks. It looks as if they might already have one with the 7/8" bolt spacing.
-- Joe
Burning Brakes
Joined: Sep 2006
Posts: 1,202
Likes: 3
From: MD
I'll let you know how much the McLeod costs. If the Hurst is cheaper I'll go that route.
I've got a 3.07 ratio D36 which should be a decent combo with the T5 for a spirited street car.
Is there a way to tell from the outside if a T5 is a World Class or not?
I've got a 3.07 ratio D36 which should be a decent combo with the T5 for a spirited street car.
Is there a way to tell from the outside if a T5 is a World Class or not?
Safety Car
Joined: May 2006
Posts: 4,290
Likes: 140
From: Salem NH
You need a 9 tooth drive, and 22 tooth driven for your speedo.
-- Joe
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Safety Car
Joined: May 2006
Posts: 4,290
Likes: 140
From: Salem NH
-- Joe
Burning Brakes
Joined: Sep 2006
Posts: 1,202
Likes: 3
From: MD
Got my T5 and a surprise...
The dude dropped it off at my house cause he was in the area for other reasons. It's super clean, shifts nice, and the input shaft feels good. Also, lo and behold, the shifter appears to be a Hurst already. There's no **** on it, but the base plate is gold and the boot is round instead of covering the whole base. Any other way to tell if it's a Hurst? If it is, I suppose I'll be modifying a Hurst stick and not calling McLeod after all.
Driveshaft is on the way from vette2vette (should be here Wednesday). Now all I need is the adapter. How's it comin', anyway? I'm gonna call ProStreet later this week and let 'em know I definitely want one.
The dude dropped it off at my house cause he was in the area for other reasons. It's super clean, shifts nice, and the input shaft feels good. Also, lo and behold, the shifter appears to be a Hurst already. There's no **** on it, but the base plate is gold and the boot is round instead of covering the whole base. Any other way to tell if it's a Hurst? If it is, I suppose I'll be modifying a Hurst stick and not calling McLeod after all.
Driveshaft is on the way from vette2vette (should be here Wednesday). Now all I need is the adapter. How's it comin', anyway? I'm gonna call ProStreet later this week and let 'em know I definitely want one.
Safety Car
Joined: May 2006
Posts: 4,290
Likes: 140
From: Salem NH
Got my T5 and a surprise...
The dude dropped it off at my house cause he was in the area for other reasons. It's super clean, shifts nice, and the input shaft feels good. Also, lo and behold, the shifter appears to be a Hurst already. There's no **** on it, but the base plate is gold and the boot is round instead of covering the whole base. Any other way to tell if it's a Hurst? If it is, I suppose I'll be modifying a Hurst stick and not calling McLeod after all.
Driveshaft is on the way from vette2vette (should be here Wednesday). Now all I need is the adapter. How's it comin', anyway? I'm gonna call ProStreet later this week and let 'em know I definitely want one.
The dude dropped it off at my house cause he was in the area for other reasons. It's super clean, shifts nice, and the input shaft feels good. Also, lo and behold, the shifter appears to be a Hurst already. There's no **** on it, but the base plate is gold and the boot is round instead of covering the whole base. Any other way to tell if it's a Hurst? If it is, I suppose I'll be modifying a Hurst stick and not calling McLeod after all.
Driveshaft is on the way from vette2vette (should be here Wednesday). Now all I need is the adapter. How's it comin', anyway? I'm gonna call ProStreet later this week and let 'em know I definitely want one.
Hurst looks like this:
I'm waiting on the modified cbeam adapter as well. Once it gets here i'll jump back on the vette. Im kinda hoping it gets here soon because I want to get the shifter sorted out.
Hurst might have a stick that works already. They have a few sticks that go 2" over. Just need to call them.
-- Joe
Safety Car
Joined: May 2006
Posts: 4,290
Likes: 140
From: Salem NH
This stick should work I think. It's hurst # 538-8571
If your shifter has a removable stick with the 7/8" bolt spacing (3/8" bolts) you can probably use this stick. An fbody shifter will need
to be taken apart, and have the internal shaft bent in a press, or heated and bent. If you use a mustang shifter you will not have to
do this, but you will have to re-drill the front two holes.
If you find an S10 hurst shifter you won't have to modify the base at all.
Obviously the cheapest and easiest route, is to pick up a T5 mustang base in the junkyard since they have the same bolt spacing for the stick (they're hurst OEM), and just buy the stick.
-- Joe
If your shifter has a removable stick with the 7/8" bolt spacing (3/8" bolts) you can probably use this stick. An fbody shifter will need
to be taken apart, and have the internal shaft bent in a press, or heated and bent. If you use a mustang shifter you will not have to
do this, but you will have to re-drill the front two holes.
If you find an S10 hurst shifter you won't have to modify the base at all.
Obviously the cheapest and easiest route, is to pick up a T5 mustang base in the junkyard since they have the same bolt spacing for the stick (they're hurst OEM), and just buy the stick.
-- Joe
Last edited by anesthes; Nov 6, 2007 at 03:05 PM.
Advanced
Joined: Aug 2007
Posts: 60
Likes: 0
From: Hood River OR
Cool thread, I just bought an 86 with a 4+3, the OD is shot. I'm considering this swap since the WC T-5 is an order of magnitude cheaper than a Richmond. Is there any cutting of the tunnel required to make the T-5 fit? Nice work so far!
Burning Brakes
Joined: Sep 2006
Posts: 1,202
Likes: 3
From: MD
There's a little cutting and patching of the tunnel, but it's the same as making the Richmond or the TKO fit. Earlier in this thread there is a picture of the tunnel mods necessary. A little aluminum and self-tapping screws and you're in business.
Safety Car
Joined: May 2006
Posts: 4,290
Likes: 140
From: Salem NH
It was reshipped to me, when it shows up I'll put it back together and take some more pix, and finish the writeup.
-- Joe
Team Owner
Joined: May 2002
Posts: 24,337
Likes: 25
From: San Diego , CA Double Yellow DirtBags 1985..Z51..6-speed
[QUOTE=anesthes;1562630391]This stick should work I think. It's hurst # 538-8571
/QUOTE]
Do you have to offset it rearward at all? Also I think the TKO shifter had more side offset than that.
Do you have to offset it rearward at all? Also I think the TKO shifter had more side offset than that.