Gen 1 Rolling Suspension changes

[Jonger1150]

It's a noisy suspension. Some are louder than others, but there is no fix besides jounce lines and maybe some damper clunk. If you want a quiet suspension that feels like floating on a cloud with no connection to the road -- get a coil over with no adjustability. A Silverado EV or Sierra EV would be the go-to options.

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[mshepard75]

My R1T is awaiting me to pickup after two weeks of me trying to get them to look at issues that are symptoms of the FSAM-1507 such as: shaking especially at high speeds, uncontrollable jerk especially when turning, alignment is off, and steering wheel is aligned off center towards left. Their, Atlanta Rivian Service Center, answer has been I need to buy new tires first and that should fix the issue. The total mileage on the truck since new is 11,893. A service rep said that’s about normal for when tires start to need to be changed. I stated in no way would I buy 4k set of tires from Rivian if the tires they use last less than 12k miles. Th dry refuse to check the issues I described above until I put new tires on. Mind you, one issue that can be caused by improper tightening of hub knuckle is worn tires. My tires they say measure 2mm at 11,893 miles. Rivian recall is to inspect, tighten, and replace hub knuckle bolts and other parts associated with issue. Now I have scheduled to another Rivian service center 3 hours away to look at it, and see if they will check the concerns out plus let’s see if Rivian takes responsibility for the concerns that most likely were the cause of the hub knuckle. Unbelievable how they won’t use common sense to be able to relate the issues and their own recall.

 

[CBRacerX]

can you take a photo of the part # on the front damper? Curious which one they installed.

It is in my post - the part numbers are part of the service record.

 

[CBRacerX]

It's a noisy suspension. Some are louder than others, but there is no fix besides jounce lines and maybe some damper clunk. If you want a quiet suspension that feels like floating on a cloud with no connection to the road -- get a coil over with no adjustability. A Silverado EV or Sierra EV would be the go-to options.

I had a 2023 Quad R1S loaner - there was none of the clunking noise I am hearing generated by that vehicle.

 

[meshugy]

It is in my post - the part numbers are part of the service record.

it shows the part # for the entire assembly which includes a number of individual parts including the dampers. What I’d like to know is the actually part # on the damper itself.

 

[CBRacerX]

it shows the part # for the entire assembly which includes a number of individual parts including the dampers. What I’d like to know is the actually part # on the damper itself.

Ahh! Sure here you go.

 

[Jonger1150]

Are new dampers quieter and smoother? Is this an opinion most people conclude?

 

[meshugy]

Are new dampers quieter and smoother? Is this an opinion most people conclude?

Thanks, you have the 2754-J dampers. I originally though the 2754s were early Launch Edition dampers but it's clear now that the R1Ts have a different part # for the front dampers.

There are some salvaged 2754-G on sale on ebay:

https://www.cafr.ebay.ca/itm/167132521218?_trkparms=amclksrc=ITM&aid=1110006&algo=HOMESPLICE.SIM&ao=1&asc=20231207125618&meid=41d97f5c5a5d430dac22c9c9051b06b1&pid=101875&rk=3&rkt=3&sd=166837368333&itm=167132521218&pmt=1&noa=0&pg=2332490&algv=SimplAMLv11WebTrimmedV3MskuWithLambda85KnnRecallV1V2V4ItemNrtInQueryAndCassiniVisualRankerAndBertRecallWithVMEV3CPCAutoWithCassiniEmbRecall&_trksid=p2332490.c101875.m1851&itmprp=cksum:16713252121841d97f5c5a5d430dac22c9c9051b06b1|enc:AQAJAAABcEnLatTXWXNAKPRnYtxVTXN2rJD11TMrqd%2Bc4NcqE%2BNGk6ejyqiKoKTZm%2BWiG7rLUKnmQT96yLmgza78VpCainYj%2Fcd7BbF%2F3JO7HSXt2n3iFYDbns8rSMT0idXbcmlMHWKniLK2o5tYYPmM8KWpVo95tWt2nTiQXMqmKRIMl5gAplMB1Ggx6kVqfXRetLAgGF2XX7tTPRiZ3ZP0u9n1wajOb5jWBqD1HYRmI52mUDIYWo3WBJMPLaSHeWs4sLj51ZTA3WsAm5FSbZL%2B99Rm53P7vJDidUOlUmXDstp3lLX6J4pOJRmcHvQpvGX4IIH9rbrVX4LTxhi9us550hMSjs9iBtqR0mgEprG%2BCvCgORpVzQUZrmPSTCn9kNWq0Mcqg5jNVTMJbkraDg4Y21wkj3PzE9yRTniVNICKnzVtVH8jOjOQ%2BdmwtqvtM%2FyYdHxqs3uFgXqkoXbMHqNkkVcebPFCL%2BXFRaFeNlqRJtM1QcMn|ampidL_CLK|clp:2332490&itmmeta=01JJ39M6Z4KAKJSPCXQAFEEZWM

They advertise them for both R1S and R1T, but it seems like the R1S front dampers are always 5318/5320 and the front R1T are 2752/2754.

I'd be curios to see a photo of an original from damper from a 2022 Launch Edition R1S. Can anyone provide that?

 

[meshugy]

@Riviot was kind enough to look up all the suspension related parts #s in the Rivian system, so now we have a definitive list of what changed and when:

Front Dampers

2022 R1S Launch Edition (vin 02xxx)

Right: C200055320-A
Left: C200055318-A

(These are unconfirmed #s, the Rivian parts system combines the front dampers with the front air springs even though they have separate #s and manufacturers. We’ll need a visual confirmation from someone with an LE as to what the part is on the front dampers.)

2023 R1S Quad (vin 18XXX)

Right: C200055320-A
Left: C200055318-A

2024 R1S Quad (vin 31xxx)

Right: PT00055320-C
Left: PT00055318-C

2025 R1S Tri

Right: PT00055320-E
Left: PT00055318-E


Front Air Springs

2022 R1S Launch Edition (vin 02xxx)

Right: C100055319-B
Left: C100055317-B

2023 R1S Quad (vin 18XXX)

Right: C100055319-B
Left: C100055317-B

2024 R1S Quad (vin 31xxx)

Right: PT00055319-D
Left: PT00055317-D

2025 R1S Tri

Don’t have front Air Spring #s for an early
2025, if someone with a Gen 2 could provide the #s that would be great!

2025 Current Gen 2 R1S

Rivian appears to have changed their naming scheme in late 2024. Current front air springs appear to be (unconfirmed):

Right: PT00614437-C
Left: PT00614436-C

Rear Dampers

2022 R1S Launch Edition (vin 02xxx)

Right: C200055239-C
Left: C200055237-C

2023 R1S Quad (vin 18XXX)

Right: C20005539-D
Left: C200055237-D

2024 R1S Quad (vin 31xxx)

Right: PT00055239-E
Left: PT00055237-E

2025 R1S Dual (vin 54xxx)

Right: PT00055239-H
Left: PT00055237-H

Current Gen 2 R1S

Right: PT01123376-A
Left: PT01123375-A

Rear Air Springs

2022 R1S Launch Edition (vin 02xxx)

C100001909-J

2023 R1S Quad (vin 18XXX)

C100001909-J

2024 R1S Quad (vin 31xxx)

PT00001909-K

2025 R1S Dual (vin 54xxx)

C100964202-A

Current Gen2 R1S

PT00384162-E

or

PT00384162-F

The part numbers for R1T were different, so ignore references earlier in the thread to the LE R1S numbers possibly being #s like C10002754-G as those are exclusive to R1T.

Reviewing all this data, it provides pretty strong evidence that Rivian was improving the suspension of the Gen 1 vehicles long before the Gen 2s began production. Luke, the head of vehicle dynamics at Rivian, said the main hardware change in Gen 2 was a redesign of the rear dampers. If you look above, that was precisely the first thing that changed from the 2022 LE to my 2023 Quad (C200055239-C to C200055239-D.) The front dampers may have also changed too but I won’t know for sure until I can confirm what part # was in the original 2022 LE.

While there was a change in part #, I can’t say at all if there’s actually any meaningful difference between damper C200055239-C and C200055239-D. My evidence is purely anecdotal in that ride of my 2023 Quad always seemed just fine, and when I demo’d a 2025 Dual it felt nearly identical. So perhaps there was a very meaningful change in revision D and they just continued to refine that in revision E which is on the 2024s and revision H which is on the Gen 2. Or, maybe the real change didn’t happen till revision H, I can’t say for sure other than when driving Gen 1 vs Gen 2 I don’t really notice much.

There was a supplier change for the air springs from Dunlop (which is what most of the Gen 1s have) to Firestone (might be in 2024s but not sure) It had something to do with Dunlop getting bought out by a Chinese company, probably no real performance difference.

It’s worth noting that all of the suspension (both rear and back dampers/air springs) were updated on the 2024 Quad and again for 2025 Gen 2. I don’t know what changed but there are newer part #s for those builds. Luke also mentioned the bearings and other rubber parts were updated to dampen vibrations, not sure when the changes were made. My 2023 also has the same knuckles and cast subframe as the Gen 2s. That probably doesn’t effect ride quality that much but helps with noisy clunks. And finally, there were significant software changes to the suspension which may have made the biggest difference in ride quality.

 

[CBRacerX]

Nice! Now do R1T

 

[Jonger1150]

I'm starting to ignore the suspension. It's winter and quieter....but I'm just coming to terms with the telescopic half-shafts being what they are.

The ability to change my suspension height is just unbeatable. Yea, I could swap this for a Silverado EV and it would be quiet....but boring without the nimble versatility.

 

[jpmc86]

I'm starting to ignore the suspension. It's winter and quieter....but I'm just coming to terms with the telescopic half-shafts being what they are.

The ability to change my suspension height is just unbeatable. Yea, I could swap this for a Silverado EV and it would be quiet....but boring without the nimble versatility.

Agreed

 

[jpmc86]

@Riviot was kind enough to look up all the suspension related parts #s in the Rivian system, so now we have a definitive list of what changed and when:

Front Dampers

2022 R1S Launch Edition (vin 02xxx)

Right: C200055320-A
Left: C200055318-A

(These are unconfirmed #s, the Rivian parts system combines the front dampers with the front air springs even though they have separate #s and manufacturers. We’ll need a visual confirmation from someone with an LE as to what the part is on the front dampers.)

2023 R1S Quad (vin 18XXX)

Right: C200055320-A
Left: C200055318-A

2024 R1S Quad (vin 31xxx)

Right: PT00055320-C
Left: PT00055318-C

2025 R1S Tri

Right: PT00055320-E
Left: PT00055318-E


Front Air Springs

2022 R1S Launch Edition (vin 02xxx)

Right: C100055319-B
Left: C100055317-B

2023 R1S Quad (vin 18XXX)

Right: C100055319-B
Left: C100055317-B

2024 R1S Quad (vin 31xxx)

Right: PT00055319-D
Left: PT00055317-D

2025 R1S Tri

Don’t have front Air Spring #s for an early
2025, if someone with a Gen 2 could provide the #s that would be great!

2025 Current Gen 2 R1S

Rivian appears to have changed their naming scheme in late 2024. Current front air springs appear to be (unconfirmed):

Right: PT00614437-C
Left: PT00614436-C

Rear Dampers

2022 R1S Launch Edition (vin 02xxx)

Right: C200055239-C
Left: C200055237-C

2023 R1S Quad (vin 18XXX)

Right: C20005539-D
Left: C200055237-D

2024 R1S Quad (vin 31xxx)

Right: PT00055239-E
Left: PT00055237-E

2025 R1S Dual (vin 54xxx)

Right: PT00055239-H
Left: PT00055237-H

Current Gen 2 R1S

Right: PT01123376-A
Left: PT01123375-A

Rear Air Springs

2022 R1S Launch Edition (vin 02xxx)

C100001909-J

2023 R1S Quad (vin 18XXX)

C100001909-J

2024 R1S Quad (vin 31xxx)

PT00001909-K

2025 R1S Dual (vin 54xxx)

C100964202-A

Current Gen2 R1S

PT00384162-E

or

PT00384162-F

The part numbers for R1T were different, so ignore references earlier in the thread to the LE R1S numbers possibly being #s like C10002754-G as those are exclusive to R1T.

Reviewing all this data, it provides pretty strong evidence that Rivian was improving the suspension of the Gen 1 vehicles long before the Gen 2s began production. Luke, the head of vehicle dynamics at Rivian, said the main hardware change in Gen 2 was a redesign of the rear dampers. If you look above, that was precisely the first thing that changed from the 2022 LE to my 2023 Quad (C200055239-C to C200055239-D.) The front dampers may have also changed too but I won’t know for sure until I can confirm what part # was in the original 2022 LE.

While there was a change in part #, I can’t say at all if there’s actually any meaningful difference between damper C200055239-C and C200055239-D. My evidence is purely anecdotal in that ride of my 2023 Quad always seemed just fine, and when I demo’d a 2025 Dual it felt nearly identical. So perhaps there was a very meaningful change in revision D and they just continued to refine that in revision E which is on the 2024s and revision H which is on the Gen 2. Or, maybe the real change didn’t happen till revision H, I can’t say for sure other than when driving Gen 1 vs Gen 2 I don’t really notice much.

There was a supplier change for the air springs from Dunlop (which is what most of the Gen 1s have) to Firestone (might be in 2024s but not sure) It had something to do with Dunlop getting bought out by a Chinese company, probably no real performance difference.

It’s worth noting that all of the suspension (both rear and back dampers/air springs) were updated on the 2024 Quad and again for 2025 Gen 2. I don’t know what changed but there are newer part #s for those builds. Luke also mentioned the bearings and other rubber parts were updated to dampen vibrations, not sure when the changes were made. My 2023 also has the same knuckles and cast subframe as the Gen 2s. That probably doesn’t effect ride quality that much but helps with noisy clunks. And finally, there were significant software changes to the suspension which may have made the biggest difference in ride quality.

Our G1 had them replaced last year for what I believe are G2 parts. Front air springs have PT00614437C with the Firestone sign. Rear air springs have PT00384162D with Firestone sign as well.
I do remember seeing a Tri motor at the service center with the same rear dampers as I have on our G1.

 

[DaveA]

One of the things I hated about my G1 was clunks, squeaks, and other suspension noises that made it sound like a 25 year old Chevy truck with leaf springs.

I know that the jounce lines and other parts have been redesigned. I really want to pickup a G2 but after so so many issues with G1’s suspension, I’m hesitant.

Anyone able to tell me they have a solid, squeak/thunk/rattle/problem free G2 suspension?

I expect the clicking when adjusting ride height, but otherwise it was seriously embarrassing how much noise it made.

Rivian posted an Instagram post for the California Dune version of the truck and the suspension can easily be heard. Sounds just like my early Gen 1 (3000 vin). I think the improvements are probably all in Gen 2 owners heads. ?‍

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