87-89 vs 89 up R154

cruzinbill

SC3TT
Jun 26, 2005
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Just wonderin if the tranny is the same between the two or if i need to swap driveshafts with it. Because i have heard the early one is slightly longer but i dont seem to see on SM any thread on it... yes i searched i just cant find it
 

Nick M

Black Rifles Matter
Sep 9, 2005
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Did you really search that hard?

The W58 from the 7MGE and the R154 for the 7MGTE are not the same length. So if you change transmissions, you need to change driveshafts.
 

cruzinbill

SC3TT
Jun 26, 2005
515
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Arkansas
Um what.... i never said anything about the w58. I said the pre 89 r154 and the 89 up r154. because the autos are diff drive shafts between those years i wanted to know if it were the same for the r154. but someone already pm'd me they are so yah.....W58 HAH thats funny
 

Jeff Lange

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Mar 29, 2005
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There is only one length Auto driveshaft. One length R154 driveshaft. One length W58 driveshaft.

They never changed.

The only thing that changed in the R154 was the speedo drive gear.