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#1 | |
Registered User
Join Date: Oct 2007
Location: Spanaway
Posts: 8,451
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Re: Rat repair.
Quote:
As far as i know my truck is all original, my step dad bought it in the early to mid 70's, i got it from him. I have the pins and bushings already so that's where I'll start, kinda wish i had an extra set of doors at times, i figure i should have mine media blasted. I wanna drive my truck for a bit too to check out the tranny rebuild. Off to work i go.....
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Mike. Swamp Rat build thread : http://67-72chevytrucks.com/vboard/s...d.php?t=595019 72 3/4T 4X4 4" BDS Lift 33" BFG's |
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#2 | |
Senior Member
![]() Join Date: Mar 2012
Location: Kansas City, MO
Posts: 2,011
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Re: Rat repair.
Quote:
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Victor 57 Chevy Wagon - California Dreamin'"Mecum'd" 9/2022 Dallas, TX Crusty Rusty Leaky Squeaky 67 Consigned 4/2019 Dresden, Germany Maybelline - my '57 Ford 2dr Sedan "Mecum'd" 3/2016 Location unknown Silver Streaker "Mecum'd" 4/2013 Somewhere in Texas |
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#3 | |
Registered User
Join Date: Oct 2007
Location: Spanaway
Posts: 8,451
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Re: Rat repair.
Quote:
Unfortunately the Eastern Wa sun and heat did a number on the gutter seal and all the rubber and i didn't realize how bad it leaked for a long while as it all ran under the floor mat and under the door sill plates, I got a wake up call one rainy morning when i hopped in the truck and pulled out of my driveway only to have about a 1/2 cup of water that built up on the bottom lip of the dash land on my lap, then i got super frustrated not being successful at finding the leak sources, and there was more than one, kinda gave up and let the truck sit for a number of years in the elements as a back up work truck.. So enter the information age about around 2000, slowly but surly i graduate from a computer smaller than a 286 and dial up bulletin boards, 56k modem, 286, Pentium, Pentium 2,slow speed internet via phone, and on to today with cable internet and quad core processors ect, i start to find there is a lot of good stuff out there to help with my cause of repairing my poor truck and i slowly start educating myself on restoration. Then one morning about 6 years ago i looked out the window and there sits my poor neglected truck in the back corner of my yard, and its covered in this weird fuzzy green and black spotty looking stuff, i looked at Meg and said, man my poor truck looks like a swamp rat and the name stuck. So now due to my neglect and lack of a garage to fit it in, plus my desire not to let this truck rust to death has brought me here. Sorry for rambling on, had a long day at work and just unwinding with a Shock Top. ![]()
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Mike. Swamp Rat build thread : http://67-72chevytrucks.com/vboard/s...d.php?t=595019 72 3/4T 4X4 4" BDS Lift 33" BFG's |
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#4 |
Registered User
Join Date: Oct 2007
Location: Spanaway
Posts: 8,451
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Re: Rat repair.
Bummer... The tranny shop says they cant send anybody out to pick me up today because i wasn't able to call them at 8am... My neighbor is gone to work, taxi will cost an arm and a leg... If i call at 8am tomorrow they will send somebody out, but i just realized i have an appointment tomorrow at 11am, sigh.
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Mike. Swamp Rat build thread : http://67-72chevytrucks.com/vboard/s...d.php?t=595019 72 3/4T 4X4 4" BDS Lift 33" BFG's |
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#5 |
Registered User
Join Date: Sep 2013
Location: Mount Morris,NY
Posts: 788
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Re: Rat repair.
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Dean 1972 Custom Camper c/20 5.3 LS swap in progress. http://67-72chevytrucks.com/vboard/s...d.php?t=610187 in God we Trust ![]() |
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#6 |
Registered User
![]() Join Date: Jul 2012
Location: Ladysmith, WI
Posts: 641
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Re: Rat repair.
Cool history
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Nick Old Mustard, 1972 Chevy C20, 350, TH350, 4.10 Dana 60 rear, owned since I was 16 in 1986 http://67-72chevytrucks.com/vboard/s...d.php?t=545356 Blue Bell, 1987 K20, 6.2L Diesel, TH400/NP208, 4.10 gears Ustahav 1976 K10, 350/350/203, Gov Loc, Yooper beater trail truck. |
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#7 |
Registered User
Join Date: Oct 2007
Location: Spanaway
Posts: 8,451
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Re: Rat repair.
Haven't been on here much the last 2 weeks, been dealing with a couple issues, one being my wife and i got into a bit of a spat, but things are looking up, the other i got moved to a different plant in my job , supposed to be temporary but it still wasn't welcome, the commute takes an extra hour out of my day, but at least I'm still working right! Anyway haven't felt much like doing anything for a bit.
Anyway, i picked up the rat 2 days ago, naturally it was raining then so back under the cover it went, rained again yesterday too, hoping to get it out and drive it a bit tomorrow. The drive home seemed fine as far as the tranny go's, they did however have to replace the case as some of the inner ribs/lugs that are used to hold the internals were wearing down allowing a clutch pack to rotate back and forth a little, least that's what they said, its been probably 30 years since i had one apart. The pic's are of the old case, the little nibs are supposed to be aw wide as the rest of the area.. I'm not sure if its just because i have no floor mat or insulation/sound deadening on the floor at the moment but the drive to the shop i was hearing a high pitched noise that sounded like it was coming from the transfer case, I mentioned it to the tranny shop when i dropped it off, it happens from 55 to 60 mph, they took the Transfer case apart and inspected everything when they resealed it and said everything looked fine, but it still made the noise on the way home, but it was a little quieter. still don't know what to make of it but i want to go back and talk to them about it.
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Mike. Swamp Rat build thread : http://67-72chevytrucks.com/vboard/s...d.php?t=595019 72 3/4T 4X4 4" BDS Lift 33" BFG's |
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#8 |
Senior Member
![]() Join Date: Mar 2012
Location: Kansas City, MO
Posts: 2,011
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Re: Rat repair.
Good that you caught it when you did. Sometimes those kinds of problems have a domino effect and the next thing you know, you've got parts scattered all over the pavement.
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Victor 57 Chevy Wagon - California Dreamin'"Mecum'd" 9/2022 Dallas, TX Crusty Rusty Leaky Squeaky 67 Consigned 4/2019 Dresden, Germany Maybelline - my '57 Ford 2dr Sedan "Mecum'd" 3/2016 Location unknown Silver Streaker "Mecum'd" 4/2013 Somewhere in Texas |
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#9 |
Registered User
Join Date: Oct 2007
Location: Spanaway
Posts: 8,451
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Re: Rat repair.
Well, my problems aren't 100% solved yet, if anybody can help I'd appreciate it, here's the thread..
http://67-72chevytrucks.com/vboard/s...d.php?t=637392
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Mike. Swamp Rat build thread : http://67-72chevytrucks.com/vboard/s...d.php?t=595019 72 3/4T 4X4 4" BDS Lift 33" BFG's Last edited by swamp rat; 07-27-2014 at 01:33 PM. |
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#10 |
Registered User
Join Date: Dec 2012
Location: Manitoba
Posts: 644
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Re: Rat repair.
Glad your back on the road. What type of oil are you running in your transfer case? I've heard various oils can cause different amounts of noise from them. (Meaning synthetic vs conventional). A friends dad ran synthetic in his case and complained it was louder... Viscosity difference?
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#11 |
Registered User
Join Date: Dec 2012
Location: Manitoba
Posts: 644
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Re: Rat repair.
If it does the chirping in neutral as well... What are the chances your flex plate cover is rubbing the flexplate/torque converter somewhere?
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#12 |
Registered User
Join Date: Oct 2007
Location: Spanaway
Posts: 8,451
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Re: Rat repair.
Finally did some preliminary checking of drive line angles.
Rear shaft is approx 3 deg on the forward end and 1.5 deg on the back. Front shaft is about 10 deg on the the forward end, It was too cramped to get a good check on the Rear but it has that C/V type joint. ( I forgot the real name ) Edit: Double Cardian ? What is a proper caster angle for the front axle?
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Mike. Swamp Rat build thread : http://67-72chevytrucks.com/vboard/s...d.php?t=595019 72 3/4T 4X4 4" BDS Lift 33" BFG's |
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#13 |
Registered User
Join Date: Oct 2007
Location: Spanaway
Posts: 8,451
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Re: Rat repair.
I pulled the front drive shaft today and the Double Cardian joint is due for a rebuild. Had to stop at the hardware store for some 5/16 24 nuts to put on the T-case yoke as the bolts are too long to remove without pulling the yoke.
Still looking for the castor spec to see if I might need some tapered shims. Might just make an appt with a front end place and be done with it. Per the noise I hope its just the front drive shaft. Will hopefully find out tomorrow. Molberg I think that t-case was filled with atf but I didn't ask.
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Mike. Swamp Rat build thread : http://67-72chevytrucks.com/vboard/s...d.php?t=595019 72 3/4T 4X4 4" BDS Lift 33" BFG's |
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#14 |
Senior Member
Join Date: Apr 2004
Location: sw colorado
Posts: 2,720
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Re: Rat repair.
front caster will be great in the 5-8 range i bet. i dont know the spec as per the book, but that is a good place to shoot on a d44.
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#15 |
Registered User
Join Date: Oct 2007
Location: Spanaway
Posts: 8,451
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Re: Rat repair.
Well as it sits now with my crude measuring system of a protractor and some large scales measuring to the center of each ball joint i come up with 4 degrees positive caster. If I was to use angled shims to increase the caster then i would also increase the drive line angle which is allready about 10 deg.
Thinking about it, i added Offroad designes shackles which are about .5 longer than stock, that would increase caster a little, not sure how much the 4" lift springs affect the angle but i would hope the company engineers the same angle into the spring Going to have to take my drive shaft to a local drive shaft place for a rebuild of that Cardian joint, i don't think i should try that one as i think that center pivot is warn out, i can do U-Joints no problem. Maybe cheaper to find an aftermarket replacement? Any idea who makes this speedo calibration unit? I don't think its stock. ??
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Mike. Swamp Rat build thread : http://67-72chevytrucks.com/vboard/s...d.php?t=595019 72 3/4T 4X4 4" BDS Lift 33" BFG's |
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#16 | |
Registered User
Join Date: Feb 2007
Location: Marana, Arizona
Posts: 3,416
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Re: Rat repair.
Quote:
http://www.tacomaspeedometer.net/ Driveline angles! Hoping I don't have to go through that. Hurts my head. A buddy who's doing the same V8 Volvo swap is fighting his. Nice that he is a step ahead of me. LOL Good luck with yours!
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"I feel the need for speed!"... as soon as I am done with my nap. |
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#17 | |
Registered User
Join Date: Oct 2007
Location: Spanaway
Posts: 8,451
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Re: Rat repair.
Quote:
Working this weekend again and have to go shopping first thing for dress cloths as i have a wedding to go to soon. Guess i out grew the other stuff..... How was the metal meet?
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Mike. Swamp Rat build thread : http://67-72chevytrucks.com/vboard/s...d.php?t=595019 72 3/4T 4X4 4" BDS Lift 33" BFG's |
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#18 |
Registered User
Join Date: Oct 2007
Location: Spanaway
Posts: 8,451
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Re: Rat repair.
Well, front drive shaft off i went for a test drive, the noise is still present in 2 High, 4 High and 4 Low, all seem to be in the same RPM range of about 2100 to 2500 RPM.
Gues my next move will be to disconnect the speedo cable, but that will have to wait. gotta run for now.
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Mike. Swamp Rat build thread : http://67-72chevytrucks.com/vboard/s...d.php?t=595019 72 3/4T 4X4 4" BDS Lift 33" BFG's |
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#19 |
Registered User
Join Date: Oct 2007
Location: Spanaway
Posts: 8,451
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Re: Rat repair.
Update time, its been a slow 2 weeks for working on the truck, worked the last 2 weekends in a row plus some OT thru the week.
Front drive shaft is at the driveline repair place, they said if the center pin is within spec then it will be about $80 to rebuild it and throw a coat of black paint on it. Rear driveshaft is removed but the u joints are super smooth so it will get cleaned up and reinstalled. Did more testing on the noise, took both driveshafts off and blocked the wheels, revved up the engine and it still made the noise in that RPM range, i grabbed my stethoscope and started probing around under the truck with the T-case in gear at idle (all 3 gears to be exact) nothing sounded bad at all. So i decide to pop the hood and listened around more around the top of the tranny and front of the engine nothing, then i revved the engine.... what the heck? the noise now sounded like it was at the top front of the engine.. Found it! A while back i was dealing with an alternator belt squeal, well i guess in my frustration dealing with that i must have tightened the belt too tight, the bearing in the alternator had let go.. How this sound made its way to the area around the transfer case and floor of my cab i can only attribute to not having carpet and insulation in the cab at the moment and the kicker, i also have the boot unscrewed from the floor. The darned truck has become a ventriloquist. ![]()
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Mike. Swamp Rat build thread : http://67-72chevytrucks.com/vboard/s...d.php?t=595019 72 3/4T 4X4 4" BDS Lift 33" BFG's |
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#20 |
Senior Member
![]() Join Date: May 2003
Location: Sandown, NH
Posts: 2,819
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Re: Rat repair.
Well I consider that to be a good find !!! That's a whole lot easier to to fix than pulling the transfer case !!!!!
Gary
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Gary 72 SWB 4x4 My 72 SWB Build http://67-72chevytrucks.com/vboard/s...d.php?t=259859 |
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#21 |
Registered User
Join Date: Sep 2013
Location: Mount Morris,NY
Posts: 788
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Re: Rat repair.
the speedo calibration units not stock? cool because i have the same one on my sm465
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Dean 1972 Custom Camper c/20 5.3 LS swap in progress. http://67-72chevytrucks.com/vboard/s...d.php?t=610187 in God we Trust ![]() |
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#22 |
Senior Member
![]() Join Date: May 2003
Location: Sandown, NH
Posts: 2,819
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Re: Rat repair.
I've owned 4 69-72 4x4 trucks and all had the speedo calibration on them. I believe it depends on what gear ratio the truck has in it. 4x4's read from the transfer case, 2wd read from the trany and they are corrected by using different internal gear, 4x4's are corrected externally by different gears in this little box !
Gary
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#23 | |
Registered User
Join Date: Oct 2007
Location: Spanaway
Posts: 8,451
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Re: Rat repair.
Quote:
If i recall correctly its a Borg Warner unit, (edit: Stewart Warner) i also took it off during the trouble shooting. I'm gonna Google it up here shortly and see if there are repair kits for it, mine leaks/does not seal to the T-case well.
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Mike. Swamp Rat build thread : http://67-72chevytrucks.com/vboard/s...d.php?t=595019 72 3/4T 4X4 4" BDS Lift 33" BFG's Last edited by swamp rat; 08-16-2014 at 05:25 PM. |
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#24 |
Registered User
Join Date: Oct 2007
Location: Spanaway
Posts: 8,451
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Re: Rat repair.
I am not sure Dean, i have looked at a few builds that didn't have them on the T-case, but being as you and Custom/10 had them now leads me to believe could be mistaken.
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Mike. Swamp Rat build thread : http://67-72chevytrucks.com/vboard/s...d.php?t=595019 72 3/4T 4X4 4" BDS Lift 33" BFG's |
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#25 |
Registered User
Join Date: Oct 2007
Location: Spanaway
Posts: 8,451
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Re: Rat repair.
I agree with you! Still feel a little foolish thinking it was the T-case tho.. I converted to an internally regulated alternator some time back, couldn't recall what vehicle it came off of so i spent an hour at NAPA looking thru a book finding the correct orientation. comming out of Portland and will be here around Tuesday.
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Mike. Swamp Rat build thread : http://67-72chevytrucks.com/vboard/s...d.php?t=595019 72 3/4T 4X4 4" BDS Lift 33" BFG's |
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