i am tryiny to find out what size diferental i have on my 1980 buick electra limited with vin 4X69XAH498745 with 11 inch drums

Asked by whiteshadow51 Mar 20, 2017 at 01:35 PM about the 1980 Buick Electra

Question type: General

i am tryiny to find out what size diferental i have on my 1980 buick electra
limited with vin 4X69XAH498745 with 11 inch drums

6 Answers
223,895

Rowefast answered 7 years ago

Ok, it going to be in the RPO numbers, regular production options, numbers. But there is a way to determine what gear ratio you have in there. Mark the drive shaft to a stationary point, and the tire to a stationary point. Rotate the wheel around one revolution and see how many times the drive shaft turns, paying attention to where it ends up, like 1/4, 3/4 turn. Hear is a sight explaining this better... http://www.badasscars.com/index.cfm/page/ptype=product/product_id=398/category_id=13/mode=prod/prd398.htm

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