Can anybody help ?
trying to find out if mounting holes are the same for all the sierra variant diffs,
ie the push in type shafts and the bolt on type ? I am aware that the top mounting can be either 7" or 7.5" wide but apart from this are the other mountings all the same dimensionally ,ie front and rear lower mounting in the same positions.
Any info on this would be great.

Thanks Simon.

This

Yes they are the same

Al

Thanks for the reply,
So if i make my diff carrier fixed ,so long as i make the top mounting 7.5inch it will take either push in or bolt on driveshaft type of diff just fit spacers for top mount for 7.0 inch diff.
Is this Right ?

Thanks Simon

Yup you got all diff configurations covered by doing that, including cossie and grandad.

hang on! just noticed your building a GT1, aint they chain drive?





Originally posted by evo3500
Thanks for the reply,
So if i make my diff carrier fixed ,so long as i make the top mounting 7.5inch it will take either push in or bolt on driveshaft type of diff just fit spacers for top mount for 7.0 inch diff.
Is this Right ?

Thanks Simon