PRO637500 Body mounts
Pro-Line Extended Front/Rear Body Mounts
Source-listed fit: related ARRMA Big Rock 3S listings — confirm your exact ARRMA Big Rock 3S V3 revision before buying.
Check your revision
The source does not confirm the exact ARA4312V3 revision. Read the note and check your model before buying.
What it replaces
Adjustable upgrade. No specific OEM part number is listed in the source.
Why it fits
Retailer explicitly supports Big Rock, Granite and Senton 4x4. Source also lists: Granite 3S; Senton 3S.
Confidence: Medium-High
A legacy or related model listing is cited. This exact revision is not yet confirmed.
Important fitment notes
Exact V3 product code not stated. Supporting parts: Alternate body shell as applicable.
Vehicle scope in source
ARRMA Big Rock 4X4 V3 3S BLX (ARA4312V3) only. V3 evidence; not V4/223S.
Only models named here by the source are covered. We don't extend fitment to other models or revisions.
Where to buy
Last seen: $14.99
Price and availability may have changed.
Verification source
nitrohobbies.comLast verified Sep 28, 2026 · Revision check
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