Fitting Gen 2 Shocks on a Gen 4 ?

[Jack B]

For starters it appears that Gen 3 and Gen 4 shocks are interchangeable, but, different than than the Gen 2. We also now know that Gen 4 shocks will fit a Gen 5. One last item, the wishbones (rear shock base) on the Gen 2 and the Gen 3/4 are different. I do not know the extent of the variance, but, the part numbers are not the same. That is the start of the question.

I have a set of Gen 2 Penskes that I want to install on a Gen 5. Does anyone know if the Gen 2 rear shock will thread into Gen 3/4/5 wishbones. Has anyone installed Gen 2 shocks into a Gen 3/4?

 

[GTS Dean]

You need to check the motion ratio of the new car's suspension to make sure there's enough room for the thing to operate through its full stroke and not top- or bottom-out. I would imagine it would probably be fairly close. Hopefully, the shock body/clevis threads are the same.

 

[GTS-R 001]

For starters it appears that Gen 3 and Gen 4 shocks are interchangeable, but, different than than the Gen 2. We also now know that Gen 4 shocks will fit a Gen 5. One last item, the wishbones (rear shock base) on the Gen 2 and the Gen 3/4 are different. I do not know the extent of the variance, but, the part numbers are not the same. That is the start of the question.

I have a set of Gen 2 Penskes that I want to install on a Gen 5. Does anyone know if the Gen 2 rear shock will thread into Gen 3/4/5 wishbones. Has anyone installed Gen 2 shocks into a Gen 3/4?

Jack

I had a set of Penskes on my 03 convert, the penskes at the time did not have the range in a gen3/4 platform. you need a new fork that can give you more range of motion like what moton uses. Their fork is shorter than the stock fork.

The threads between Gen2 and Gen 3 are different, the Gen 3 and 4 threads are the same for the fork.

The Gen 2 fork is a different width at the bottom than the Gen 3/4/5 fork. i.e. they are not interchangeable., gen 3 will fit on a Gen 2 with spacers, Gen 2 will not fit on a gen 3/4/5 as the fork with where the bolt goes through is not wide enough and the cast aluminum is too brittle to bend.

 

[Mad Max]

Hope you can get them to work, however if it's not meant to be would they be for sale?

 

[Jack B]

If they will not fit, they could be up for sale at year end. I love those shocks.

Hope you can get them to work, however if it's not meant to be would they be for sale?

 

[WDW MKR]

Not sure about the wishbone height issue, but you can also swap the lower mount bushing on the control arm to accommodate the width difference. Bolt pattern is the same.