a543 diff pin savers

[Sundance 6g72]

where can i get them and what is the install like?

the motor will be pulled before the car goes back to the road. mine as well take care of this while i can.

[turbovanman²]

Dealer, Trans store, maybe Ebay. Install is cake, remove a 4 ring gear bolts, install shields and tighten back down. I might even have a couple to sell.

[135sohc]

Dealer part. Install is not hard but its much easier to install them with the differential removed. Little involved but nothing hard, hardest part is getting the cover and side retainers reinstalled without getting sealant smeared everywhere. helps to have a second person when doing that.

[turbovanman²]

True, my bad, lol, thought he had the trans apart, hahhaha.

[Sundance 6g72]

is there a write up any where? ill look when i get home.. its going to be a busy night so if someone has a link plz share


do i get the diff pin saver for my specific car or do i tell them i have a 5spd neon?

[135sohc]

Tell them exactly what your looking for. The newer parts should automatically superceed the old part designations right there on their computer screen catalog.

[speedfreek500]

Dont forget to clean the bolts and use RED loctite on the threads.

[DodgeZ]

http://boostedmopar.com/forums/showthread.php?5760-How-To-DIY-dif-pin-retainer...

[Sundance 6g72]

thanks


Dont forget to clean the bolts and use RED loctite on the threads.

i belive you, but red does not like to come off... can someone second the use of red?


Tell them exactly what your looking for. The newer parts should automatically superceed the old part designations right there on their computer screen catalog.

i need a diff pin saver for a 93 a543 for my 93 duster. or something that wont let the tranny grenade from too many one wheel peels. LSD is out of the question right now.

[DodgeZ]

the part number is in the thread I posted... Well if it is a single pin diff.

[135sohc]

Yes use red loctite, you do not want those bolts coming out.

5134957AA is the pn for the short retainer tabs. 4800013AB is the pn for the long retainer tabs. Either one will work, you may have to trim the longer ones down. The 957's were listed as NS1 when I last bought some so availability maybe limited.
5134956AA is the updated differential pin. You should replace it as well if your going to put work into installing the retainer tabs.

[Sundance 6g72]

im a noob

whats the purpose of getting short and long retainer tabs? the update diff pin is the "diff pin saver"?


thanks for the thread and part numbers guys

[135sohc]

The longer tabs are/were used in the 4spd automatics and there probably going to be easier to source since automatics are 100x more commonly serviced and installed than the T350 5spd ever was. The updated pin is slightly longer so when installed with the tabs they press on it and keep it from sitting loosely in the housing, it is also new and not going to be gouged or galled from one wheel peels.


Heres a 568 differential I installed them in last month. 4 tabs, 1 new pin.
37773

[Sundance 6g72]

so get longer tabs that were meant for a 4spd and put them in my a543 (to my understanding, same as a523 just different bellhousing to bolt to a 6gxx block)

[DodgeZ]

The longer tabs are/were used in the 4spd automatics and there probably going to be easier to source since automatics are 100x more commonly serviced and installed than the T350 5spd ever was. The updated pin is slightly longer so when installed with the tabs they press on it and keep it from sitting loosely in the housing, it is also new and not going to be gouged or galled from one wheel peels.


Heres a 568 differential I installed them in last month. 4 tabs, 1 new pin.
37773

Add that to the thread I linked too.

[135sohc]

so get longer tabs that were meant for a 4spd and put them in my a543 (to my understanding, same as a523 just different bellhousing to bolt to a 6gxx block)

Get either one. If the 5134957AA is backordered/not available anymore/ect then get the 4800013AB and if necessary take a pair of tin snips and trim them down if required.

A543 is the same thing year for year as the A523. Bellhousing is the only difference, internally they are 100% identical.

[Sundance 6g72]

okay i think i get it. i wont know 100% what you guys are talking about until i dig into it.

so there is only ONE thing that i order correct? 5134956AA and if its backordered then get a 4800013AB and trim it?

how much is this part? is the $3 i read correct? cheep cheep jebus

[135sohc]

5134956AA is the new cross pin. (1 required)

5134957AA OR 4800013AB (if the first ones are NLA) are the retainer tabs. (2 required)

one pin, two tabs.

[Sundance 6g72]

okay thanks

any idea on prices?

[135sohc]

msrp is $14.50 on the pin, $3.50 each on the tabs. you might be able to get them for a bit less if you call around.

I can send you a pin & pair of tabs for $30 shipped and be there saturday or monday if your in a rush. (I'd have to replace mine on short notice and the local place charges more than the online guys and my price reflects that..)

[Sundance 6g72]

wait, so i need new tabs too?

im kinda confused but i havnt visually seen the tranny torn down in front of me yet.

thanks for the offer. ill get back to you if i need too assuming the offer stands a week from now or maybe a month from now depending. im doing a motor rebuild currently, plus custom manifold, and a few other things.. i need to budget things out.

[135sohc]

Yea. Two tabs/retainers and one pin if needed/wanting to replace.


two tabs replace the roll pin.
37774

[Sundance 6g72]

is the new pin "bullet proof"

from what i understand, the stock pin likes to shear apart and grenade the tranny

[135sohc]

Nothing is bulletproof in an open differential.

By letting it rotate in the housing when under hard shearing loads (one wheel spinning) it is spreading the wear more evenly around the pin instead of keeping it concentrated in one small spot. The actual roll pin itself is usually what breaks from the shearing force as the pinion gears are spinning on the pin and trying to turn it and shear the roll pin off. Letting the pin shoot out of the housing and go boom.

[Sundance 6g72]

so am i correct to repalce the pin and tabs?

sorry if im being repeditive.. just want to get it right.

[135sohc]

Yes. It is cheap insurance against having it blow up and cause lots of damage.

[RoadWarrior222]

so am i correct to repalce the pin and tabs?

sorry if im being repeditive.. just want to get it right.

Are you maybe assuming it has tabs in it? Stock they don't.

It's sorta possible to do it with the tranny in the car... it's hard to hold the ring gear assembly while you get enough torque and clearance to move a wrench to break the bolts free... hence why easier when it's out.

[shackwrrr]

http://img.tapatalk.com/6216d2f2-738e-4223.jpg

This is from my 568, shows how the roll pin breaks and the wear/galling that happens to the shaft. Crazy thing is this pin didn't fly out, I was playing with the differential and noticed it moved.

[Murphy]

If you got the diff pin out there is a cheap ghetto LSD mod you can do. Not as good as a real LSD, but should be better than nothing. I've had one in my car for about a year and a half. Basically you use a spring clip from a Ford rear end. I can't remember much except that Carlton Powers introduced my to the idea, and had a thread of it up on a neon board. I'm pretty sure he made a thread here about it.

Basically the spring pushes on the side gears making them less likely to spin.

[RoadWarrior222]

Nooooooo!!!!!!!

It makes a helluva mess when the temper on the spring goes from the heat cycling... goes brittle, shatters, metals out your transmission... and in my case knocked chips off the ring gear, took a chunk out the diff housing, ripped off a pin retainer letting the pin loose, and fired the pin out the top of the case, punching a hole in it... guess what speed it let go at?

20mph when I clipped a pothole.... can't imagine what carnage woulda happened if it let go on the highway.

only did a couple of thousand miles.

[Reaper1]

Wow...that's the first time I've heard about something like that happening!

[RoadWarrior222]

Happened to "JacksDodge" as well I think.

[Sundance 6g72]

soo the tabs are the diff pin "savers" ?

[RoadWarrior222]

Yes... the stock method of holding the pin is a roll-pin at one end. This goes in a hole in the diff housing then through a hole in the diff pin. This can shear off. Most people remove it when fitting the "tabs" or "diff savers" this now allows the pin to rotate freely to stop the gears galling it.

[turbovanman²]

Any kind of spring or phantom grip are bad news, too much metal floats around the trans and it still doesn't solve the issue.

Save up and get an OBX.

[Sundance 6g72]

ill get a rebuilt obx one of these days

only concern right now is preventing the tranny from grenadeing in the burnout box

[RoadWarrior222]

oh, oh, oh, I know that one....


... drive round it. :thumb:

[Sundance 6g72]

slicks brah

[Murphy]

Happened to "JacksDodge" as well I think.

That's Carlton, I sent him a message to see if that did happen to him or not. Making me wonder what I should do with my trans. I need to find another 543 case....

[Ondonti]

I didn't even know short ones ever existed. The set I have removed from an old trans is the long set that I cut down in 2002.

[RoadWarrior222]

The receipt for the last tabs I bought showed up, but I was buying for the 31TH version, think they're the same, part number I got was 4800059AA "Bracket" which was valid in October 07.

---------- Post added at 08:36 AM ---------- Previous post was at 08:34 AM ----------

Don't know these folks but it popped up cheap and available... http://www.factorymoparparts.com/4800059aa.html
These are always SINGLES! order TWO.

[supercrackerbox]

Ok, I got the two tabs, and a new pin. Should I worry about the shorter pins, or just leave them be?

[135sohc]

FWIW. Just an extra measure against something happening I put them in all 4 spots on the 568 I redid recently. Still leaving the roll pins in place so the short pins dont rattle around.

[supercrackerbox]

Does anyone have the part numbers for the two short pins from an A-555 with a 4-pin diff?

[Sundance 6g72]

havnt really thought about this much sense i last posted but i really should.

in the event that my motor goes in before i can get the tabs installed, how hard is it to install them in car?

[135sohc]

havnt really thought about this much sense i last posted but i really should.

in the event that my motor goes in before i can get the tabs installed, how hard is it to install them in car?

It would be extremely involved, as to the point of really not making sense.

[RoadWarrior222]

You can put the tabs on from under the car with the diff cover removed*, but, I'm not sure it's possible to get the roll pin out of the diff pin to let it move free. Those bolts are fraggin' hard to break loose though, so due to lack of space for cheaters, or clearance for most impact wrenches, you will probably find it way easier to do it with the trans out... however, the diff will pop out the trans with the K frame dropped... (And the ext housing removed)


(* Done it on the van to replace one that got mangled by other debris.)

[Sundance 6g72]

haha okay ill do my bes to get it done before it goes back in

thanks guys

[supercrackerbox]

So . . . Part numbers for the short pins?

[135sohc]

You can put the tabs on from under the car with the diff cover removed*, but, I'm not sure it's possible to get the roll pin out of the diff pin to let it move free. Those bolts are fraggin' hard to break loose though, so due to lack of space for cheaters, or clearance for most impact wrenches, you will probably find it way easier to do it with the trans out... however, the diff will pop out the trans with the K frame dropped... (And the ext housing removed)


(* Done it on the van to replace one that got mangled by other debris.)

Your forgetting the difference between the automatic and manual transmission. The auto has a simple stamped steel cover that can be removed and installed all day long without affecting the sides. The 5spd diff cover is tied into the sides and your not going to just take it off and put it right back on.



So . . . Part numbers for the short pins?

I looked for them in the past and could not find anything listed. Dealership could not either.

[RoadWarrior222]

Doh! :thumb:

[Sundance 6g72]

5134956AA is the new cross pin. (1 required)

5134957AA OR 4800013AB (if the first ones are NLA) are the retainer tabs. (2 required)

one pin, two tabs.

hopefully going to the dodge dealer tomorrow to do this ^

thanks for your info guys, I appreciate it.

cant wait to get that motor in. it might be doing 1 wheel peels but hopefully she wont be grenading! especially going 85mph and starting to spin.. that would suck to have the tranny let looss at high speed. i would want it to happen if i was doing a burnout but not because im loosing traction at the top of third! YIKES