nt diffs are front and rear interchangable

Post by **skez** » Mon Jun 30, 2008 6:45 pm

im about to put nt diffs into a wt i no that coily sierras front and back diffs are differnent
but does it matter in a nt or wt leaf sierra they look the same and both turn the same way??? also i have tried searching
thanks

Post by **nicbeer** » Mon Jun 30, 2008 6:50 pm

same r and p but sidegears are different as there is a different spline count between f and r.

Post by **skez** » Mon Jun 30, 2008 7:33 pm

yeah just checked then the ring is 43 teeth and pinion is 11
which works out to 3.9 ratio when divided but yeh they have different size axel splines so if i blew the diff i could just change the gears over.

are the axel splines the same size front and back on nt and wt sierras?

Post by **built4thrashing** » Mon Jun 30, 2008 7:44 pm

NT diff ctrs will bolt into a WT housing and the axle splines are the same ( just different lenghts)

You might have trouble with the flanges on the ctr. NT 1ltr and NT1.3 and WT have different bolt spacings. you will either have to swap flanges over and reset backlash on the ctr or do a half and half on the diff end uni. pull the tailshaft out and see if it bolts to the new ctr first before ya pull everything apart. Can save a heap of frustration is ya know first.

Post by **want33s** » Mon Jun 30, 2008 8:39 pm

skez wrote:yeah just checked then the ring is 43 teeth and pinion is 11
which works out to 3.9 ratio when divided but yeh they have different size axel splines so if i blew the diff i could just change the gears over.

are the axel splines the same size front and back on nt and wt sierras?

NT is 3.9:1... WT is 3.7:1.
Centres will swap over easily but front and rear are different as mentioned /\ /\...
I put NT 3.9 centres in my WT housings and changed the flanges over to suit.
If you blow a diff it'd prob be easier to change the spider gears than the ring and pinion.

Post by **skez** » Mon Jun 30, 2008 9:28 pm

shit i just finished putting the front locker in the nt centre i didnt think about the flanges.........................................
i hope i got enough spare axels lying around to switch over

Post by **built4thrashing** » Mon Jun 30, 2008 9:51 pm

axle splines are the same NT to WT but WT are just a tad longer. Front axles are slightly smaller in diameter to rears.

Post by **skez** » Mon Jun 30, 2008 10:14 pm

yeh i mean drive line axles hopefully i got enough lying round so i dont have to change the flanges on diff centres

Post by **Guy** » Tue Jul 01, 2008 1:39 pm

skez wrote:yeh i mean drive line axles hopefully i got enough lying round so i dont have to change the flanges on diff centres

Usually refered to as tailshaft or driveshafts ( From transfer case or gearbox to the diff's )

Post by **skez** » Tue Jul 01, 2008 1:52 pm

yeh i have the nt driveshafts so im just doing half nt and half wt driveshafts there all the same length im slack for changing flanges over

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nt diffs are front and rear interchangable

nt diffs are front and rear interchangable

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