The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post

clinebarger · 07-20-2014, 08:05 PM

Removing the front drums will expose the Input planetary & Reaction Sun shell.

NOTICE. If there is a plastic Thrust Washer on top of the Input planet, The Unit has a (small) early Forward Sprag assembly, IF you upgrade to a '87 & later Sprag assembly....DO NOT install this Thrust Washer upon assembly.

If the Input Sun gear is left behind in the Input planet, Remove it. Later (90's)units have the input sun gear "snap-fitted" to the sprag assembly.

Remove the Yellow snap ring (pic), Pull the Output shaft out the rear of the case.

07-20-2014, 08:05 PM	#27
clinebarger Senior Member Join Date: May 2009 Location: Fort Worth, TX Posts: 6,370	Re: 700R4 build thread. Removing the front drums will expose the Input planetary & Reaction Sun shell. NOTICE. If there is a plastic Thrust Washer on top of the Input planet, The Unit has a (small) early Forward Sprag assembly, IF you upgrade to a '87 & later Sprag assembly....DO NOT install this Thrust Washer upon assembly. If the Input Sun gear is left behind in the Input planet, Remove it. Later (90's)units have the input sun gear "snap-fitted" to the sprag assembly. Remove the Yellow snap ring (pic), Pull the Output shaft out the rear of the case. Attached Images