Can anyone tell me the backlash spec's 05GT's 8.8" rear end w/ 3:55's? Can ya do one better and e-mail me a PDF of that section?

I assume that the lash should be set the same as before even with a shorter gear like a 4:10. My FRPP 4:10's are whining and the shop AND I are reluctant to put it back up on the lift for an entire day. I trust these guys but wanted to know what the factory specs are to compare to their setting.

Thanks in advance.

 

Here's the spec's Gear ratio will have no effect on the backlash setting. THe PDF of the spec is below.

Clearance, Tolerance and Adjustments
Maximum differential case runout 0.076 mm (0.003 in)
Differential side gear thrust washer thickness 0.762-0.813 mm (0.030-0.032 in)
Differential pinion gear thrust washer thickness 0.762-0.813 mm (0.030-0.032 in)
Maximum axle shaft end play 0.762 mm (0.030 in)
Pinion bearing preload (used pinion bearings) 0.9-1.5 Nm (8-14 lb-in)
Pinion bearing preload (new pinion bearings) 1.8-3.3 Nm (16-29 lb-in)
Ring gear backlash 0.203-0.381 mm (0.008-0.015 in) [0.305-0.381 mm (0.012-0.015 in) preferred]
Variation between teeth maximum backlash 0.102 mm (0.004 in)
Available drive pinion bearing adjustment shim in steps of 0.25 mm (0.010 in) 0.254 mm (0.010 in) - 0.965 mm (0.038 in)
Pinion flange runout 0.25 mm (0.010 in) T.I.R.


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I can send you the whole pdf for replacing the rear end if you PM me your email

 

PM'd

 

Speaking of this has anyone got the shop manual stuff on changing Caster and toe settings? I already got camber from the issues section.

Thanks
James

softbatch7236@gmail.com

 

caster and toe? what part of the car does that come from?

 

Front end alignment settings Dustin

 

Oh, I thought you meant camel toe

 

LOL

 

Do a search for the spec's I posted them awhile back.
As for changing caster there is no adjustment for this. (at least from the factory)

 

 

Thanks Dustin that's exactly what I needed.

<!--QuoteBegin-FordRacing@January 17, 2006, 8:43 PM
Do a search for the spec's I posted them awhile back.
As for changing caster there is no adjustment for this. (at least from the factory)
[/quote]

I searched your username for alignment, caster, and toe but couldn't find anything on it. I got the info from Dustin in the PDFs though.

Now I just need to decide if I want to change my toe settings before events.

 

a great camber and toe reference

www.cameltoe.org

 

One thing to note when setting the backlash... when you torque the two bearing caps down, the backlash measure is slightly different then when they are only partially tight.... So be sure you torque them down to spec before measuring it. With my 4.30s I ended up with just over .008" all around.