Can one of you guys help me on a measurement?
Thread Starter
Joined: Jul 1999
Posts: 12,093
Likes: 126
From: SALEM, NH
Car: '88 Formula
Engine: LC9
Transmission: 4L60E
Axle/Gears: 3.89 9"
Can one of you guys help me on a measurement?
I have a steel bellhousing not for a thirdgen. I drilled and welded square nuts for the thirdgen 'rotated' pattern.
I didn't quite get the angle right, i'm off a few degrees, and as a result I need to shim my cross member.
Now thats not a problem, but I'd like to try and get my tailshaft height as close to possible from stock, so when I dial in my rear end (adjustable) I can get the pinion angles correct easier.
So I was wondering if someone with a t5 could measure for me the distance from the floor plan (on the inner side of the shifter hole) to the top of the trans tailshaft? I'm starting around 2 1/8" but I could be a half inch or more off in either direction.
See attached picture for rough idea of how I measured it. Shown measurement is not exact because I needed two hands to old the tape straight but you get the idea.
Thanks!
-- Joe
I didn't quite get the angle right, i'm off a few degrees, and as a result I need to shim my cross member.
Now thats not a problem, but I'd like to try and get my tailshaft height as close to possible from stock, so when I dial in my rear end (adjustable) I can get the pinion angles correct easier.
So I was wondering if someone with a t5 could measure for me the distance from the floor plan (on the inner side of the shifter hole) to the top of the trans tailshaft? I'm starting around 2 1/8" but I could be a half inch or more off in either direction.
See attached picture for rough idea of how I measured it. Shown measurement is not exact because I needed two hands to old the tape straight but you get the idea.
Thanks!
-- Joe
On Probation
Joined: Oct 2008
Posts: 6,319
Likes: 19
From: Northern Utah
Car: seeking '90.5-'92 'bird hardtop
Engine: several
Transmission: none
Axle/Gears: none
Re: Can one of you guys help me on a measurement?
Guys, you don't need a T5 to help with this. I would, but mine is at the painter's. Anyone with the driveshaft out just measure from the tunnel to the center of the output shaft.
Thread Starter
Joined: Jul 1999
Posts: 12,093
Likes: 126
From: SALEM, NH
Car: '88 Formula
Engine: LC9
Transmission: 4L60E
Axle/Gears: 3.89 9"
Re: Can one of you guys help me on a measurement?
From the crossmember to that point in the floor, I got 7.5"
Then on a T5 sitting on the bench, if I put a straight edge on the mount block, to the top I get 6"
So I guess the 'factory' height should be 1.5" from the floor, so I guess I'll set that as a starting point.
I have to make a crossmember (dual 3" y-pipe/longtubes) and I want to make it so I can shim the pinion angle up or down without being out like INCHES to begin with. Plus, as I mentioned before, my trans is a couple degrees off in rotation because I ran out of surface to drill on the scattershield. Apparently on the thirdgen scattershields they bump out just a hair at 2 o'clock. The scattershield I have is generic SBC, didn't have the rotated pattern drilled, nor does it have the hydraulic slave mount so I'm running a Howe hydraulic TOB.
-- Joe
Supreme Member
Joined: Jun 2005
Posts: 1,440
Likes: 2
From: huntsville, al
Car: 89 IROC
Engine: 6.8 HSR N2O
Transmission: TKO 600
Axle/Gears: 9" Moser 3.50 True trac
Re: Can one of you guys help me on a measurement?
I used the dual pattern housing but your approach should work just fine. Besides, you have the standard pattern if you ever want to go with a TKO or something. My t5's just didn't hold up in the long run. I would like to know how the slave/throw out bearing works. I used the factory slave and had a problem with 1 paticular clutch set not having enough stroke to fully disengage. I had to make my master adjustable to get enough stroke. I have since changed both the clutch and master and now my clutch pedal is too high. Guess I will have to pull this master and make it adjustable too. The direct oposite problem... Weird huh? I wonder how the slave/tb will work out as far as your pedal height.
Thread Starter
Joined: Jul 1999
Posts: 12,093
Likes: 126
From: SALEM, NH
Car: '88 Formula
Engine: LC9
Transmission: 4L60E
Axle/Gears: 3.89 9"
Re: Can one of you guys help me on a measurement?
I used the dual pattern housing but your approach should work just fine. Besides, you have the standard pattern if you ever want to go with a TKO or something. My t5's just didn't hold up in the long run. I would like to know how the slave/throw out bearing works. I used the factory slave and had a problem with 1 paticular clutch set not having enough stroke to fully disengage. I had to make my master adjustable to get enough stroke. I have since changed both the clutch and master and now my clutch pedal is too high. Guess I will have to pull this master and make it adjustable too. The direct oposite problem... Weird huh? I wonder how the slave/tb will work out as far as your pedal height.
https://www.thirdgen.org/forums/tran...ster-bore.html
Assuming the numbers are right on the clutch master.
I'll report back once I have the car up and running.
-- Joe
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