porkchop
08-17-2000, 04:56 PM
Does any one know if I can take the gears out of my axle from the '67 and put them into the axle of the '79? They are both D44's. If I remember right though the '67 axle is 23 spline. Is this right and does it matter? I just can't seem to get any real speed with the 3:54's and 32's and I plan to go to 35's soon. Any help would be great.
One more stupid question, will the gears from the D27 fit? The housing is the same size.....
andy d wrote:
are you looking for top end or acceleration? putting on 35" will help top end out some what, and cost you seconds on your e/t. swapping ring and pinions requires a lotta fitting and trying,checking the way the gears mesh,etc. an old timer,once advised me not to bother, swap the whole axle housing. before i went thru that hassle,i'd try the 35s.
scotty wrote:
the d44 carriers are the same regardless of year. the1970 and earlier d44 used a 19 spline shaft.in order to use the 67 carrier in a 79 appliction,youll need to disassemble the carrier and replace the side and spider gears with the 30 spline ones form the 79. the ring and piion should swap directly from one carrier to the other,dep on the ratio. the dana 44 uses one carrier for ratios up to 3.73,and a different one for 3.92 and up.
in other words,if your 79 axle has 3.73 or numerically lower,and the 67 has numerically higher than 3.92,youll need to swap the side and spider gears in the diff nd use the whole carrier to make it work. if they are both either numerically lower than 3.73,or both higher than 3.92,you should be able to just swap r&p.
however,it is a time comsuming job to properly set up a rear end. it requires special tool,and alot of assembling,checking,and dissassembling tomake adjustments.pinion depth,backlash,and bearing preload are all very important.done incorrectly,the gears will howl,and may not last very long. you could simply install the new parts with the same shims that were on the 79 axle originally and hope for the best. jsut pay close attention to how it comes apart and what shims go where.
i dont think the d27 gears will work in a d44. id be willing to bet that the carrier is alot smaller.but idont know this for sure.
[ May 04, 2002: Message edited by: irbob ]</p>
One more stupid question, will the gears from the D27 fit? The housing is the same size.....
andy d wrote:
are you looking for top end or acceleration? putting on 35" will help top end out some what, and cost you seconds on your e/t. swapping ring and pinions requires a lotta fitting and trying,checking the way the gears mesh,etc. an old timer,once advised me not to bother, swap the whole axle housing. before i went thru that hassle,i'd try the 35s.
scotty wrote:
the d44 carriers are the same regardless of year. the1970 and earlier d44 used a 19 spline shaft.in order to use the 67 carrier in a 79 appliction,youll need to disassemble the carrier and replace the side and spider gears with the 30 spline ones form the 79. the ring and piion should swap directly from one carrier to the other,dep on the ratio. the dana 44 uses one carrier for ratios up to 3.73,and a different one for 3.92 and up.
in other words,if your 79 axle has 3.73 or numerically lower,and the 67 has numerically higher than 3.92,youll need to swap the side and spider gears in the diff nd use the whole carrier to make it work. if they are both either numerically lower than 3.73,or both higher than 3.92,you should be able to just swap r&p.
however,it is a time comsuming job to properly set up a rear end. it requires special tool,and alot of assembling,checking,and dissassembling tomake adjustments.pinion depth,backlash,and bearing preload are all very important.done incorrectly,the gears will howl,and may not last very long. you could simply install the new parts with the same shims that were on the 79 axle originally and hope for the best. jsut pay close attention to how it comes apart and what shims go where.
i dont think the d27 gears will work in a d44. id be willing to bet that the carrier is alot smaller.but idont know this for sure.
[ May 04, 2002: Message edited by: irbob ]</p>