Final Drive Spine replacement, dual
shock models (1970-1984)
It's very common that the spines on the drive gear become
worn out over time, leaving you stranded or casing further unwanted damage. Sometimes
you have two options, you could either purchase a new ring and pinion gear set
from BMW. They're not cheap but some gearing ratios are still available, but
not all of them. A more cost effective way to complete the same repair is to
install our final drive spline (3312100) to your ring gear. We can make this
repair for you in two separate ways, you can send us your complete final drive
(this is recommended because the cover will need to be shimmed during assembly
and back lash will also need to be checked), or you can pull the ring gear and
send it to us for the repair.
by itself - Parts and labor $319.95
final drive - Parts and labor start at $649.00
includes seals and re-shimming
The final drive will need to be fully disassembled. With the
ring gear removed and the bearings pulled off we are now ready to remove the
weld. After the original weld has been turned off in a lathe, the entire spline
shaft can be pressed out of the ring gear. Then, this high quality replacement
shaft is pressed into the ring gear. The shaft is manufactured of the same
material as the ring gear, so this new part and the original ring gear can be
welded together perfectly. Once the repair is complete, the ring and pinion
gear will need to be shimmed to complete the repair. This would be the best
time to inspect all of the bearing and even overhaul the final drive. Additional
parts and time will
This repair is for all BMW dual shock models 1970-1984.
If your final drive requires further attention then we will
have to charge accordingly. We charge $100.00 an hour and have all the parts in
stock. You will be contacted before any work is performed.
*** Prices are based on standard rebuild jobs. Costs can
vary depending on condition or parts that need to be replaced. We do not seal
final drives that demand new gears/parts to be replaced. It keeps them from
ever coming back!*****
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