Author Topic: SOLVED: Need HELP with 4-speed transmission removal problem  (Read 1507 times)

Offline Michael

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Re: SOLVED: Need HELP with 4-speed transmission removal problem
« Reply #15 on: September 22, 2018, 08:24:31 PM »


I still don't understand your logic in not simply lowering the unit to do the work needed.



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Here is a picture that shows what I am talking about.  You can see that the top of the trans is slightly further away from the bell housing because I was lowering the back trying to get the shifter nub to clear the Floorboard.  The shaft is still way in the bellhousing and starting to bend.  Hence the need to cut the footboard so I could move it straight back.

They only other option I could come up with was to remove the engine mounts and raise/move the engine forward to clear the shaft but cutting the Floorboard was easier and much faster.  No matter what I decided to do the trans cannot be lowered until the shaft clears the bellhousing.

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1986 K10 4x4
5.0L
SM465 4-speed manual

Offline Michael

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Re: SOLVED: Need HELP with 4-speed transmission removal problem
« Reply #16 on: September 22, 2018, 08:28:48 PM »
Here is the pic I meant to attach to the last post.

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1986 K10 4x4
5.0L
SM465 4-speed manual

Online VileZambonie

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Re: SOLVED: Need HELP with 4-speed transmission removal problem
« Reply #17 on: September 23, 2018, 06:15:55 PM »
Okay so you had a jack under the transmission and or transfer case right? So at that point, you remove the crossmember bolts and lower the unit down. At this point you do no not need to cut your floor.
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Offline Michael

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Re: SOLVED: Need HELP with 4-speed transmission removal problem
« Reply #18 on: September 23, 2018, 08:01:16 PM »
Okay so you had a jack under the transmission and or transfer case right? So at that point, you remove the crossmember bolts and lower the unit down. At this point you do no not need to cut your floor.
No, because the shaft is still in the bellhousing holding the trans up.  You can't go down until the shaft goes back enough to clear the bellhousing.

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1986 K10 4x4
5.0L
SM465 4-speed manual

Online bd

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Re: SOLVED: Need HELP with 4-speed transmission removal problem
« Reply #19 on: September 23, 2018, 08:26:13 PM »
Are you saying the engine won't let the transmission drop far enough?  Did you check to see whether the fan was binding against the radiator shroud?
Rich
It's difficult to know just how much you don't know until you know it.
In other words... if people learn by making mistakes, by now I should know just about everything!!!
87 R10 Silverado Fleetside 355 MPFI 700R4 3.42 Locker (aka Rusty, aka Mater)

Offline Michael

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Re: SOLVED: Need HELP with 4-speed transmission removal problem
« Reply #20 on: September 23, 2018, 08:35:13 PM »
Are you saying the engine won't let the transmission drop far enough?  Did you check to see whether the fan was binding against the radiator shroud?
Correct.  Not far enough for the shifter knob to clear the floorboard. It came close, about a half an inch still stopping up, but I just couldn't get it any closer so went ahead and cut the notch.

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1986 K10 4x4
5.0L
SM465 4-speed manual

Offline Michael

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Re: SOLVED: Need HELP with 4-speed transmission removal problem
« Reply #21 on: September 23, 2018, 08:37:24 PM »
Nub, not knob.   I hate this app, it won't let me edit anything.  Grrr

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1986 K10 4x4
5.0L
SM465 4-speed manual

Online bd

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Re: SOLVED: Need HELP with 4-speed transmission removal problem
« Reply #22 on: September 24, 2018, 09:04:08 AM »
Soooo,

Did you check to see whether the fan was binding against the radiator shroud?
Rich
It's difficult to know just how much you don't know until you know it.
In other words... if people learn by making mistakes, by now I should know just about everything!!!
87 R10 Silverado Fleetside 355 MPFI 700R4 3.42 Locker (aka Rusty, aka Mater)

Offline JohnnyPopper

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Re: SOLVED: Need HELP with 4-speed transmission removal problem
« Reply #23 on: September 24, 2018, 03:10:21 PM »
SMH  :-X
1957 Apache 3100 235 Inline 6, 3 on the tree
1973 C-20, 3+3 454 4BBL TH400  Water Injection
1978 K-10, 350 4BBL TH350 NP203 M.M. Part time Kit/Hubs
1980 C-10 under construction

Offline Michael

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Re: SOLVED: Need HELP with 4-speed transmission removal problem
« Reply #24 on: September 25, 2018, 04:14:37 PM »
Soooo,
Did you check to see whether the fan was binding against the radiator shroud?

I was watching that and the distributor and while both were close there was a little more room to go but I was jacking the front of the engine so hard I was afraid to keep going.  Because this is my daily driver, I only had a couple more days with a loaner car, was working overtime the last couple weeks, and the weather (rainy hot and humid), I could not keep trying random things and just did what was easy and would clearly solve my problem.  It is possible that cranking the jack a little more on the engine might have have me enough room but I was skeptical and need to get it don and back on the road.
1986 K10 4x4
5.0L
SM465 4-speed manual

Online VileZambonie

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Re: SOLVED: Need HELP with 4-speed transmission removal problem
« Reply #25 on: September 25, 2018, 05:29:14 PM »
All you needed to do was remove the crossmemeber and lower the unit down. That's it!
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                         /  _ _ _\_
              ⌠ŻŻŻŻŻ'   [☼===☼]
              `()_);-;()_)--o--)_)

Offline Michael

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Re: SOLVED: Need HELP with 4-speed transmission removal problem
« Reply #26 on: September 25, 2018, 06:05:01 PM »
All you needed to do was remove the crossmemeber and lower the unit down. That's it!

You keep saying that but you can't seem to comprehend that there is a shaft coming out of transmission that goes into the bellhousing and until that shaft is moved back (out of the bellhousing) the SHAFT holds the front of the transmission up, not the cross-member.
1986 K10 4x4
5.0L
SM465 4-speed manual

Online bd

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Re: SOLVED: Need HELP with 4-speed transmission removal problem
« Reply #27 on: September 25, 2018, 07:36:40 PM »
Michael, simply as an FYI with no argument intended, Vile comprehends perfectly.  Vile, et al, have R&I'd many transmissions - too many to count.  As long as all interfering peripherals are suitably disconnected and moved out of the way (e.g., clutch linkage, speedo cable, shift lever, driveline, any connected wires, distributor cap & rotor, cooling fan or shroud, and the exhaust piping attached to the engine manifolds), removing the crossmember, entirely, allows the transmission to pivot the engine on its forward mounts as the transmission drops virtually from its own weight, with control provided by the jack.  Once the transmission is adequately tilted, the transmission can be unbolted and removed.  In some cases, the engine mountings can be stiff enough to cause the engine to rebound upward as the transmission is separated from the bell and its weight is unloaded from the clutch house, which can beg an added step of blocking the engine in its tilted position until the transmission is reinstalled.
Rich
It's difficult to know just how much you don't know until you know it.
In other words... if people learn by making mistakes, by now I should know just about everything!!!
87 R10 Silverado Fleetside 355 MPFI 700R4 3.42 Locker (aka Rusty, aka Mater)