Shafts move, new c-clip's, pin, shaft or all???

1988 convertible · March 15th, 2009, 05:02 PM

Hi Guys need some serious help...

I think i need to replace the C-CLIP in the rear diff and the cross pin as they may be worn this has been discovered while installing a rear disk kit to the car, there is allot of play in the shafts moving about 5mm either way... they are making the disks rub on the inner sections on the anodised part of the calliper... i as aware before when i had the drums on there but changing to disks has made it worse...

ive seen some C-clips the Cross pin to buy but will this be enough to stop the movement, or do you think i would need to buy new shafts too???

I have also seen a c-clip eliminator kit but this fits axle shafts 1.400"dia and is not for street racing or use with rear disks...

Has anyone else experienced this when converting the rear drum to disks???

if someone could steer me in the right direction be very grateful

BlessedHellride · March 15th, 2009, 10:19 PM

The axles will move in and out slightly. Just pull the diff cover and pull the center pin out and see if it has excessive wear on it. Might as well pull the axles all the way out and inspect the C-clip grove and make sure it is not worn out to badly. C-clips generally hold up fairly well, but anything can happen.

Iwannagofast · March 15th, 2009, 10:55 PM

yeah 5mm doesnt sound like excess movement

flamed 98 gt · March 15th, 2009, 11:48 PM

Thats about right. Not much you can do.

chickenbot · March 16th, 2009, 06:56 AM

or just get some c clip elims

1988 convertible · March 16th, 2009, 09:19 AM

ok im gonna try the c-clips and a new cross pin... will check for wear too...

the eliminator only states that you can use them for racing use and without disk brakes...

is there any specific reason why i cant use the eliminator???

flamestang · March 16th, 2009, 11:11 AM

do you want to sell your backing plates you took off?

ryans88gt · March 16th, 2009, 02:29 PM

probably due to the trac lok being worn out. When you rebuild it that sets the end play as the shims in the trac lok move the side gears in or out.

1988 convertible · March 17th, 2009, 03:56 AM

im not too familiar with this sect... is it possible to repair or replace the track lock???

trying to cover all the bases, so i welcome anymore possibilities!!

1988 convertible · March 17th, 2009, 03:58 AM

Originally Posted by flamestang

do you want to sell your backing plates you took off?

Hi sorry the guy that helped me fit the brakes claimed them when we did it lol... he didnt take any payment but i let him have some spare bits and things

sorry

1slo5.0 · March 17th, 2009, 01:10 PM

Play in the axles is normal with c-clip rear ends.

1988 convertible · March 19th, 2009, 03:24 AM

Hey Guys thanks for the help with this...

ive had a few people mention the trac-lok as well...

so ordered a repair kit for the trac-lok, c-clips, centre pin...

gonna see how things go with that and also check the wear on the shafts when i take it all out...

Thanks for all your help and ill post back how things get on!!

March 15th, 2009, 05:02 PM	#1
1988 convertible Regular 1988 Join Date: Jun 2007 Location: London Posts: 215 iTrader: 0 reviews	Shafts move, new c-clip's, pin, shaft or all??? Hi Guys need some serious help... I think i need to replace the C-CLIP in the rear diff and the cross pin as they may be worn this has been discovered while installing a rear disk kit to the car, there is allot of play in the shafts moving about 5mm either way... they are making the disks rub on the inner sections on the anodised part of the calliper... i as aware before when i had the drums on there but changing to disks has made it worse... ive seen some C-clips the Cross pin to buy but will this be enough to stop the movement, or do you think i would need to buy new shafts too??? I have also seen a c-clip eliminator kit but this fits axle shafts 1.400"dia and is not for street racing or use with rear disks... Has anyone else experienced this when converting the rear drum to disks??? if someone could steer me in the right direction be very grateful

March 16th, 2009, 06:56 AM	#5
chickenbot Enthusiast 1990 mustang gt eventually Join Date: Nov 2007 Location: plano, tx Posts: 938 iTrader: 0 reviews	or just get some c clip elims __________________ 1990 gt 5.0 Mac Performance 76mm straight shot intake 70mm Accufab tb and egr spacer Trick Flow Track Heat u/l intake 3.55 gears MSD distributor, Blaster Coil, and 8.5mm wires

March 16th, 2009, 02:29 PM	#8
ryans88gt MM Fanatic Join Date: May 2007 Location: Bloomington, IL Posts: 4,737 iTrader: 0 reviews	probably due to the trac lok being worn out. When you rebuild it that sets the end play as the shims in the trac lok move the side gears in or out. __________________ 88 GT CHI headed 351w 10.8 @ 125 - still figuring it out. 03 Cobra 2.3 whipple 10.7 @ 129 - sold it 04 Mach 1 12.7 @ 109 mostly stock - sold it 89 LX procharged 302 515 hp 497 ftlbs 10.7 @130 mph - sold it

March 17th, 2009, 01:10 PM	#11
1slo5.0 MM Ninjas! 1990 Mustang LX 9.36@143 mph Join Date: Jan 2006 Location: North Fond du Lac, Wisconsin Posts: 11,375 iTrader: 1 reviews	Play in the axles is normal with c-clip rear ends. __________________ My daily driver has 16 cylinders and 4400hp @ 1000 rpm.... ***1988 Mustang GT - Stock....almost

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March 15th, 2009, 10:19 PM	#2
BlessedHellride Regular 1988 Notchback 11.19 @ 122mph N/A Join Date: Mar 2009 Location: DeRidder, Louisiana Posts: 424 iTrader: 0 reviews	The axles will move in and out slightly. Just pull the diff cover and pull the center pin out and see if it has excessive wear on it. Might as well pull the axles all the way out and inspect the C-clip grove and make sure it is not worn out to badly. C-clips generally hold up fairly well, but anything can happen.

March 15th, 2009, 11:48 PM	#4
flamed 98 gt Regular 1990 5.0 LX Notch Join Date: Sep 2006 Location: The Colony, TX Posts: 375 iTrader: 0 reviews	Thats about right. Not much you can do.

March 16th, 2009, 09:19 AM	#6
1988 convertible Regular 1988 Join Date: Jun 2007 Location: London Posts: 215 iTrader: 0 reviews	ok im gonna try the c-clips and a new cross pin... will check for wear too... the eliminator only states that you can use them for racing use and without disk brakes... is there any specific reason why i cant use the eliminator???

March 16th, 2009, 11:11 AM	#7
flamestang Regular Join Date: Apr 2007 Posts: 338 iTrader: 0 reviews	do you want to sell your backing plates you took off?

March 17th, 2009, 03:56 AM	#9
1988 convertible Regular 1988 Join Date: Jun 2007 Location: London Posts: 215 iTrader: 0 reviews	im not too familiar with this sect... is it possible to repair or replace the track lock??? trying to cover all the bases, so i welcome anymore possibilities!!

March 19th, 2009, 03:24 AM	#12
1988 convertible Regular 1988 Join Date: Jun 2007 Location: London Posts: 215 iTrader: 0 reviews	Hey Guys thanks for the help with this... ive had a few people mention the trac-lok as well... so ordered a repair kit for the trac-lok, c-clips, centre pin... gonna see how things go with that and also check the wear on the shafts when i take it all out... Thanks for all your help and ill post back how things get on!!

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