Path: ...!eternal-september.org!feeder2.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: Snag Newsgroups: rec.crafts.metalworking Subject: Re: Successful Transplant ! Date: Sun, 27 Oct 2024 19:33:09 -0500 Organization: A noiseless patient Spider Lines: 104 Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Injection-Date: Mon, 28 Oct 2024 01:33:13 +0100 (CET) Injection-Info: dont-email.me; posting-host="53f2779ca4e671ecb69b2fc3449bad1a"; logging-data="712983"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX19bU9D1ITxIc72iD4VJEA6ZWi6UBl19Cu4=" User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.9.1 Cancel-Lock: sha1:whKdC1CrSCUOmt/CpvW/yABmKHQ= X-Antivirus-Status: Clean X-Antivirus: Avast (VPS 241027-4, 10/27/2024), Outbound message In-Reply-To: Content-Language: en-US Bytes: 7357 On 10/27/2024 6:30 PM, Clare Snyder wrote: > On Sat, 26 Oct 2024 22:17:18 -0400, Clare Snyder > wrote: > >> On Sat, 26 Oct 2024 14:27:15 -0500, Snag wrote: >> >>> On 10/25/2024 4:17 PM, Clare Snyder wrote: >>>> On Thu, 24 Oct 2024 17:15:56 -0500, Snag wrote: >>>> >>>>> On 10/24/2024 3:45 PM, Bob La Londe wrote: >>>>>> On 10/21/2024 3:29 PM, Snag wrote: >>>>>>>    I picked up the truck axle today ... Got it bolted into place >>>>>>> before my back started complaining . It has a right to complain , I've >>>>>>> abused it the last few days harvesting firewood . >>>>>>>    I'm eagerly anticipating getting this project finished , I was >>>>>>> hoping to have the truck ready by next weekend for Beanfest . Looks >>>>>>> promising so far , I've got all the new parts for what I want to >>>>>>> replace . This is going to be interesting , my first experience with a >>>>>>> limited slip diff . Dropping from 2.73:1 to 3.42's is going to make >>>>>>> things a bit more lively too . >>>>>> >>>>>> I was going to write up some of my comments on limited slip and locking >>>>>> differentials, because I have had both, but the experience and which >>>>>> performed exactly how kind of runs together in my memory. >>>>>> >>>>>> The 03 Silverado 2500 (2wd) had auto locking rear. >>>>>> The '17 Jeep JK had limited slip.  I can't recall if it was rear only or >>>>>> front and rear. >>>>>> >>>>>> The 07 Silverado had rear autolocking >>>>>> The 24 F250 has rear electric locking. >>>>>> >>>>>> I have felt the affects and it definitely helps in the soft stuff. Can't >>>>>> speak to the slippery stuff.  I try to avoid that at all cost. >>>>>> >>>>>> Not sure exactly how posi differs from limited slip or auto locking, but >>>>>> its the real deal for street racing. >>>>>> >>>>>> FYI:  I am thinking about building a stroked 351 and pushing it out to >>>>>> around 401.  Not today though.  Looking for gobs of mid range for towing >>>>>> torque with a long duration cam rather than a high reving high HP engine >>>>>> with a high lift cam.  I sold my 07 Silverado and my Jeep.  Now I only >>>>>> have the new 24 Ford for a tow vehicle.  I feel naked without a >>>>>> backup... er tow vehicle that is. >>>>>> >>>>> >>>>> I got the brakes on yesterday , adjusted them this morning and bolted >>>>> the bed back on . Took it for a short ride after I finished , it seems >>>>> to drive the same as before . Except when I punch it on gravel it leaves >>>>> 2 gouges instead of one . The one drive train "problem" I have left is >>>>> torque converter lockup . It ain't locking up . I'll need to do some >>>>> testing , it's probably related to all of the original pollution >>>>> controls going missing while the truck was out of service . My poor gas >>>>> mileage probably has something to do with that . There are manual >>>>> workarounds , but I really want this to be automatic . >>>> Bad temp sensor or loww thermostat temp will do that - has to be >>>> warmed up to "operating temperature" before it locks. VSS is the other >>>> input - has to be over a certain speed. Brake light switch will also >>>> prevent lockup (cannot lock if the switch says the brakes are on). >>>> Before digging into ANY of that make sure the lockup function actually >>>> works by installing a manual switch. You can automate the whole thing >>>> with simple relay logic - the speed control is the most complicated. >>>> An Arduino simplifies the whole thing significantly and actually >>>> costsless than the 3 relays required for relay logic but you need to >>>> wrap your head around the boolean logic required for the arduino - and >>>> the basic programming involved. >>>> >>> >>> Clare , I will probably hook up a switch to test function , but it >>> will be temporary - and since the solenoid in the trans is brand new >>> when rebuilt less than a thousand miles back I fully expect it to >>> function properly . My understanding from the manual is that the lockup >>> is solely controlled by a vacuum/electric switch which is controlled by >>> engine vacuum . There is no temp dependent switch in the circuit . I do >>> know for a fact that the circuit was working before the trans was >>> rebuilt (and a bunch of vacuum lines and emission control devices got >>> lost) , the radio is on the same fuse and because the solenoid in the >>> trans was shorted it would blow that fuse every time it energized . >> If it only has the vac switch it will be ugly when the engine is cold >> and under braking. If it has a low gear lockout that all gets better - >> (Some early TH350s with locking converter used the simple setup but >> even THEY worked better cold with a thermo lockout - and I believe >> they still had a speed lockout (built into the trans) operated by >> governor pressure. The newer stuff does it all with the TCM reading >> VSS and CTS as well as brake - allowing better compression braking as >> well as transparent engagement and cold operation. > Your transmission MAY also have a temperature switch inside which > will prevent lockup on a colt transmission - and if defective COULD > prevent lockup - perios. SOME 700R4 traanys ahve the switch, some > don't. SOME have the 3/4 switch, some do not. Only way to know is to > drop the pan. Also, some have one wire (self grounded) solenoid, > others have 2 wire. One wire solenoid USUALLY has external 4th gear > pressure switch and will require a relay to enable it or you risk > cooking the switch (if it is not a heavy enough switch) > I'll check with the guy that built it this week . It's possible that the rebuilt converter he supplied doesn't have lockup , I understand that some don't but that may be an aftermarket thing . -- Snag Voting for Kamabla after Biden is like changing your shirt because you shit your pants .